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Tuesday, April 16, 2019

Loren Eiseley

From Wikipedia, the free encyclopedia

Loren Corey Eiseley
Eiseley UPenn.gif
BornSeptember 3, 1907
DiedJuly 9, 1977 (aged 69)
NationalityAmerican
Alma materUniversity of Nebraska, BA/BS (1933)
University of Pennsylvania, MA, PhD (1937)
Known forNature writer, educator, philosopher
Awards36 honorary degrees; Phi Beta Kappa Award
for "Best science book", Darwin's Century
Scientific career
FieldsAnthropology
InstitutionsUniversity of Pennsylvania
InfluencesSir Francis Bacon, Charles Darwin, Ralph Waldo Emerson, Thoreau

Loren Eiseley (September 3, 1907 – July 9, 1977) was an American anthropologist, educator, philosopher, and natural science writer, who taught and published books from the 1950s through the 1970s. He received many honorary degrees and was a fellow of multiple professional societies. At his death, he was Benjamin Franklin Professor of Anthropology and History of Science at the University of Pennsylvania.

He was a "scholar and writer of imagination and grace," whose reputation and accomplishments extended far beyond the campus where he taught for 30 years. Publishers Weekly referred to him as "the modern Thoreau." The broad scope of his writing reflected upon such topics as the mind of Sir Francis Bacon, the prehistoric origins of man, and the contributions of Charles Darwin.

Eiseley's reputation was established primarily through his books, including The Immense Journey (1957), Darwin's Century (1958), The Unexpected Universe (1969), The Night Country (1971), and his memoir, All the Strange Hours (1975). Science author Orville Prescott praised him as a scientist who "can write with poetic sensibility and with a fine sense of wonder and of reverence before the mysteries of life and nature." Naturalist author Mary Ellen Pitts saw his combination of literary and nature writings as his "quest, not simply for bringing together science and literature ... but a continuation of what the 18th and 19th century British naturalists and Thoreau had done." In praise of "The Unexpected Universe", Ray Bradbury remarked, "[Eiseley] is every writer's writer, and every human's human ... One of us, yet most uncommon ..."

According to his obituary in the New York Times, the feeling and philosophical motivation of the entire body of Eiseley's work was best expressed in one of his essays, The Enchanted Glass: "The anthropologist wrote of the need for the contemplative naturalist, a man who, in a less frenzied era, had time to observe, to speculate, and to dream." Shortly before his death he received an award from the Boston Museum of Science for his "outstanding contribution to the public understanding of science" and another from the U.S. Humane Society for his "significant contribution for the improvement of life and environment in this country."

Early life

Born in Lincoln, Nebraska, Eiseley lived his childhood with a hardworking father and deaf mother who may have suffered from mental illness. Their home was located on the outskirts of town where, as author Naomi Brill writes, it was "removed from the people and the community from which they felt set apart through poverty and family misfortune." His autobiography, All the Strange Hours, begins with his "childhood experiences as a sickly afterthought, weighed down by the loveless union of his parents."

His father, Clyde, was a hardware salesman who worked long hours for little pay, writes Brill. However, as an amateur Shakespearean actor, he was able to give his son a "love for beautiful language and writing." His mother, Daisey Corey, was a self-taught prairie artist who was considered a beautiful woman. She lost her hearing as a child and sometimes exhibited irrational and destructive behavior. This left Eiseley feeling distant from her and may have contributed to his parents' unhappy marriage. 

Living at the edge of town, however, led to Eiseley's early interest in the natural world, to which he turned when being at home was too difficult. There, he would play in the caves and creek banks nearby. Fortunately, there were others who opened the door to a happier life. His half-brother, Leo, for instance, gave him a copy of Robinson Crusoe, with which he taught himself to read. Thereafter, he managed to find ways to get to the public library and became a voracious reader.

Eiseley later attended the Lincoln Public Schools; in high school, he wrote that he wanted to be a nature writer. He would later describe the lands around Lincoln as "flat and grass-covered and smiling so serenely up at the sun that they seemed forever youthful, untouched by mind or time—a sunlit, timeless prairie over which nothing passed but antelope or wandering bird." But, disturbed by his home situation and the illness and recent death of his father, he dropped out of school and worked at menial jobs. 

Eiseley enrolled in the University of Nebraska, where he wrote for the newly formed journal, Prairie Schooner, and went on archaeology digs for the school's natural history museum, Morrill Hall. In 1927, however, he was diagnosed with tuberculosis and left the university to move to the western desert, believing the drier air would improve his condition. While there, he soon became restless and unhappy, which led him to hoboing around the country by hopping on freight trains (as many did during the Great Depression). Professor of religion, Richard Wentz, writes about this period:
Loren Eiseley had been a drifter in his youth. From the plains of Nebraska he had wandered across the American West. Sometimes sickly, at other times testing his strength with that curious band of roving exiles who searched the land above the rippling railroad ties, he explored his soul as he sought to touch the distant past. He became a naturalist and a bone hunter because something about the landscape had linked his mind to the birth and death of life itself.

Academic career

Eiseley eventually returned to the University of Nebraska and received a B.A. degree in English and a B.S. degree in Geology/Anthropology. While at the university, he served as editor of the literary magazine The Prairie Schooner, and published his poetry and short stories. Undergraduate expeditions to western Nebraska and the southwest to hunt for fossils and human artifacts provided the inspiration for much of his early work. He later noted that he came to anthropology from paleontology, preferring to leave human burial sites undisturbed unless destruction threatened them.

Eiseley received his Ph.D. degree from the University of Pennsylvania in 1937 and wrote his dissertation entitled "Three Indices of Quaternary Time and Their Bearing Upon Pre-History: a Critique", which launched his academic career. He began teaching at the University of Kansas that same year. During World War II, Eiseley taught anatomy to reservist pre-med students at Kansas. 

In 1944 he left the University of Kansas to assume the role of head of the Department of Sociology and Anthropology at Oberlin College in Ohio. In 1947 he returned to the University of Pennsylvania to head its Anthropology Department. He was elected president of the American Institute of Human Paleontology in 1949. From 1959 to 1961, he was provost at the University of Pennsylvania, and in 1961 the University of Pennsylvania created a special interdisciplinary professorial chair for him.

Eiseley was also a fellow of many distinguished professional societies, including the American Association for the Advancement of Science, the United States National Academy of Sciences, the National Institute of Arts and Letters and the American Philosophical Society.

At the time of his death in 1977, he was Benjamin Franklin Professor of Anthropology and History of Science, and the curator of the Early Man section at the University of Pennsylvania Museum. He had received thirty-six honorary degrees over a period of twenty years, and was the most honored member of the University of Pennsylvania since Benjamin Franklin. In 1976 he won the Bradford Washburn Award of the Boston Museum of Science for his "outstanding contribution to the public understanding of science" and the Joseph Wood Krutch Medal from the Humane Society of the United States for his "significant contribution for the improvement of life and the environment in this country."

Books

In addition to his scientific and academic work, Eiseley began in the mid-1940s to publish the essays which brought him to the attention of a wider audience. Anthropologist Pat Shipman writes,
the words that flowed from his pen ... the images and insights he revealed, the genius of the man as a writer, outweigh his social disability. The words were what kept him in various honored posts; the words were what caused the students to flock to his often aborted courses; the words were what earned him esteemed lectureships and prizes. His contemporaries failed to see the duality of the man, confusing the deep, wise voice of Eiseley's writings with his own personal voice. He was a natural fugitive, a fox at the wood's edge (in his own metaphor) ...
Eiseley published works in a number of different genres including poetry, autobiography, history of science, biography, and nonfictional essays. In each piece of writing, he consistently used a poetic writing style. Eiseley's style mirrors what he called the concealed essay—a piece of writing that unites the personal dimension with more scientific thoughts. His writing was unique in that it could convey complex ideas about human origin and the relationship between humans and the natural world to a nonscientific audience. Robert G. Franke describes Eiseley's essays as theatrical and dramatic. He also notes the influence his father's hobby as an amateur Shakespearean actor may have had on Eiseley's writing, pointing out that his essays often contain dramatic elements that are usually present in plays.

In describing Eiseley's writing, Richard Wentz wrote, "As the works of any naturalist might, Eiseley's essays and poems deal with the flora and fauna of North America. They probe the concept of evolution, which consumed so much of his scholarly attention, examining the bones and shards, the arrowpoints and buried treasures. Every scientific observation leads to reflection." 

In an interview on National Public Radio (NPR), author Michael Lind said,
Before the rise of a self-conscious intelligentsia, most educated people – as well as the unlettered majority – spent most of their time in the countryside or, if they lived in cities, were a few blocks away from farmland or wilderness ... At the risk of sounding countercultural, I suspect that thinkers who live in sealed, air-conditioned boxes and work by artificial light (I am one) are as unnatural as apes in cages at zoos. Naturalists like Eiseley in that sense are the most normal human beings to be found among intellectuals, because they spend a lot of time outdoors and know the names of the plants and animals they see ... For all of his scientific erudition, Eiseley has a poetic, even cinematic, imagination.

Purposes of his writings

Richard Wentz describes what he feels are the significance and purposes of Eiseley's writings: "For Loren Eiseley, writing itself becomes a form of contemplation. Contemplation is a kind of human activity in which the mind, spirit and body are directed in solitude toward some other. Scholars and critics have not yet taken the full measure of contemplation as an art that is related to the purpose of all scholarly activity – to see things as they really are ... Using narrative, parable and exposition, Eiseley has the uncanny ability to make us feel that we are accompanying him on a journey into the very heart of the universe. Whether he is explicating history or commenting on the ideas of a philosopher, a scientist or a theologian, he takes us with him on a personal visit." 

However, because of Eiseley's intense and poetic writing style and his focus on nature and cosmology, he was not accepted or understood by most of his colleagues. "You," a friend told him, "are a freak, you know. A God-damned freak, and life is never going to be easy for you. You like scholarship, but the scholars, some of them, anyhow, are not going to like you because you don't stay in the hole where God supposedly put you. You keep sticking your head out and looking around. In a university that's inadvisable." 

1950s

The Immense Journey (1957)
His first book, The Immense Journey, was a collection of writings about the history of humanity, and it proved to be that rare science book that appealed to a mass audience. It has sold over a million copies and has been published in at least 16 languages. Besides being his first book, The Immense Journey was also Eiseley's most well known book and established him as a writer with the ability to combine science and humanity in a poetic way. This book was originally published in 1946. Then, it was published again in 1957, a few years after the Piltdown Man hoax discovery. 

In the book Eiseley conveys his sense of wonder at the depth of time and the vastness of the universe. He uses his own experiences, reactions to the paleontological record, and wonderment at the world to address the topic of evolution. More specifically, the text concentrates on human evolution and human ignorance. In The Immense Journey, Eiseley follows the journey from human ignorance at the beginning of life to his own wonderment about the future of mankind. Marston Bates writes,
It seems to me ... that Eiseley is looking at man in a quite hard-headed fashion, because he is willing to sketch problems for which he has no present and sure solution. We are not going to find the answers in human evolution until we have framed the right questions, and the questions are difficult because they involve both body and mind, physique and culture—tools and symbols as well as cerebral configurations.
Author Orville Prescott wrote,
Consider the case of Loren Eiseley, author of The Immense Journey, who can sit on a mountain slope beside a prairie-dog town and imagine himself back in the dawn of the Age of mammals eighty million years ago: 'There by a tree root I could almost make him out, that shabby little Paleocene rat, eternal tramp and world wanderer, father of all mankind.' ... his prose is often lyrically beautiful, something that considerable reading in the works of anthropologists had not led me to expect. ... The subjects discussed here include the human ancestral tree, water and its significance to life, the mysteries of cellular life, 'the secret and remote abysses' of the sea, the riddle of why human beings alone among living creatures have brains capable of abstract thought and are far superior to their mere needs for survival, the reasons why Dr. Eiseley is convinced that there are no men or man-like animals on other planets, . ...
He offers an example of Eiseley's style: "There is no logical reason for the existence of a snowflake any more than there is for evolution. It is an apparition from that mysterious shadow world beyond nature, that final world which contains—if anything contains—the explanation of men and catfish and green leaves."
Darwin's Century (1958)
This book's subtitle is, "Evolution and the Men Who Discovered It." Eiseley documented that animal variation, extinction, and a lengthy history of the earth were observed from the 1600s onward. Scientists groped towards a theory with increasingly detailed observations. They became aware that evolution had occurred without knowing how. Evolution was "in the air" and part of the intellectual discourse both before and after On the Origin of Species was published. The publisher describes it thus:
At the heart of the account is Charles Darwin, but the story neither begins nor ends with him. Starting with the seventeenth-century notion of the Great Chain of Being, Dr. Eiseley traces the achievements and discoveries of men in many fields of science who paved the way for Darwin; and the book concludes with an extensive discussion of the ways in which Darwin's work has been challenged, improved upon, and occasionally refuted during the past hundred years.

According to naturalist author Mary Ellen Pitts, in the "seminal" Darwin's Century, Eiseley was studying the history of evolutionary thinking, and he came to see that "as a result of scientific studies, nature has become externalized, particularized, mechanized, separated from the human and fragmented, reduced to conflict without consideration of cooperation, confined to reductionist and positivist study." The results for humankind, "as part of the 'biota' – Eiseley's concern as a writer – are far reaching." In the book, his unique impact as a thinker and a literary figure emerges as he reexamines science and the way man understands science. She concludes that, for Eiseley, "Nature emerges as a metonym for a view of the physical world, of the 'biota,' and of humankind that must be reexamined if life is to survive."

In his conclusion, Eiseley quotes Darwin: "If we choose to let conjecture run wild, then animals, our fellow brethren in pain, disease, suffering and famine—our slaves in the most laborious works, our companions in our amusements—they may partake of our origin in one common ancestor—we may be all melted together." Eiseley adds, "If he had never conceived of natural selection, if he had never written the Origin, it would still stand as a statement of almost clairvoyant perception."

1960s

The Firmament of Time (1960) Read excerpts online
In discussing The Firmament of Time, Professor of Zoology Leslie Dunn wrote, "How can man of 1960, burdened with the knowledge of the world external to him, and with the consciousness that scientific knowledge is attained through continually interfering with nature, 'bear his part' and gain the hope and confidence to live in the new world to which natural science has given birth? ... The answer comes in the eloquent, moving central essay of his new book." The New Yorker wrote, "Dr. Eiseley describes with zest and admiration the giant steps that have led man, in a scant three hundred years, to grasp the nature of his extraordinary past and to substitute a natural world for a world of divine creation and intervention ... An irresistible inducement to partake of the almost forgotten excitements of reflection." A review in The Chicago Tribune added, "[This book] has a warm feeling for all natural phenomena; it has a rapport with man and his world and his problems; ... it has hope and belief. And it has the beauty of prose that characterizes Eiseley's philosophical moods."

The Firmament of Time was awarded the 1961 John Burroughs Medal for the best publication in the field of Nature Writing.
The Unexpected Universe (1969) Read excerpts online
Poet W.H. Auden wrote, "The main theme of The Unexpected Universe is Man as the Quest Hero, the wanderer, the voyager, the seeker after adventure, knowledge, power, meaning, and righteousness." He quotes from the book:
Every time we walk along a beach some ancient urge disturbs us so that we find ourselves shedding shoes and garments or scavenging among seaweed and whitened timbers like the homesick refugees of a long war ... Mostly the animals understand their roles, but man, by comparison, seems troubled by a message that, it is often said, he cannot quite remember or has gotten wrong ... Bereft of instinct, he must search continually for meanings ... Man was a reader before he became a writer, a reader of what Coleridge once called the mighty alphabet of the universe.
Evolutionary biologist Theodosius Dobzhansky described Dr. Eiseley as
... a Proust miraculously turned into an evolutionary anthropologist ...", and science fiction novelist Ray Bradbury wrote glowing reviews of many of his books including this one. ... "Here he writes from a naturalist's perspective on the unexpected and symbolic aspects of the universe. Read about seeds, hieroglyphs on shells, the Ice Age, lost tombs, city dumps and primitive Man. The underlying theme is the desolation and renewal of our planet's history and experience.

Loren Eiseley's dark, brooding prose is unique in the annals of nature writing. The Unexpected Universe features some of what are considered Eiseley's best essays. Heavily autobiographical and deeply personal, these essays are not cheerful ramblings on the joy of communing with nature. They are bleak, lonely musings on the human condition. est essays. Heavily autobiographical and deeply personal, these essays are not cheerful ramblings on the joy of communing with nature. They are bleak, lonely musings on the human condition

1970s

The Invisible Pyramid (1971) Read excerpts online
Gregory McNamee of Amazon.com writes, "In 1910 young Loren Eiseley watched the passage of Halley's Comet with his father. The boy who became a famous naturalist was never again to see the spectacle except in his imagination. That childhood event contributed to the profound sense of time and space that marks The Invisible Pyramid. This collection of essays, first published shortly after Americans landed on the moon, explores inner and outer space, the vastness of the cosmos, and the limits of what can be known. Bringing poetic insight to scientific discipline, Eiseley makes connections between civilizations past and present, multiple universes, humankind, and nature.
Eiseley took the occasion of the lunar landing to consider how far humans had to go in understanding their own small corner of the universe, their home planet, much less what he called the 'cosmic prison' of space. Likening humans to the microscopic phagocytes that dwell within our bodies, he grumpily remarks, 'We know only a little more extended reality than the hypothetical creature below us. Above us may lie realms it is beyond our power to grasp.' Science, he suggests, would be better put to examining that which lies immediately before us, although he allows that the quest to explore space is so firmly rooted in Western technological culture that it was unlikely to be abandoned simply because of his urging. Eiseley's opinion continues to be influential among certain environmentalists, and these graceful essays show why that should be so.
Book excerpt:
Man would not be man if his dreams did not exceed his grasp. ... Like John Donne, man lies in a close prison, yet it is dear to him. Like Donne's, his thoughts at times overleap the sun and pace beyond the body. If I term humanity a slime mold organism it is because our present environment suggest it. If I remember the sunflower forest it is because from its hidden reaches man arose. The green world is his sacred center. In moments of sanity he must still seek refuge there. ... If I dream by contrast of the eventual drift of the star voyagers through the dilated time of the universe, it is because I have seen thistledown off to new worlds and am at heart a voyager who, in this modern time, still yearns for the lost country of his birth.
The Night Country (1971) Read excerpts online
... like the medievalists, Eiseley reads nature as the second book of God's revelation, mysterious and heavy with latent, lurking fertility. His sizable audience should welcome the latest voyage in search of the secret springs of creativity - evolutionary, cosmic, mental - as a muted adumbration of temporal mortality." Other reviews: "Eiseley has met strange creatures in the night country, and he tells marvelous stories about them ... For Eiseley, storytelling is never pure entertainment. The autobiographical tales keep illustrating the theses that wind through all his writing - the fallibility of science, the mystery of evolution, the surprise of life.
— Time Magazine
A sort of Odyssey by a man in dialogue with nature and evolution; Eiseley remains one of our foremost humanists-and prose stylists.
— Christian Century
In a published essay, University of Pennsylvania alumnus Carl Hoffman wrote,
An old man who had done almost all of his writing late, late at night, was speaking to a younger man who liked to read in those same dark hours. In a chapter entitled 'One Night's Dying,' Eiseley said to me: 'It is thus that one day and the next are welded together, and that one night's dying becomes tomorrow's birth. I, who do not sleep, can tell you this.' Today, well into my fifties, in the midst of a lifetime of almost compulsive reading, I still regard The Night Country as my all-time favorite book.
All the Strange Hours: The Excavation of a Life (1975) Read excerpts online
"In All the Strange Hours," states Amazon.com,
Eiseley turns his considerable powers of reflection and discovery on his own life to weave a compelling story, related with the modesty, grace, and keen eye for a telling anecdote that distinguish his work. His story begins with his childhood experiences as a sickly afterthought, weighed down by the loveless union of his parents. From there he traces the odyssey that led to his search for early postglacial man—and into inspiriting philosophical territory—culminating in his uneasy achievement of world renown. Eiseley crafts an absorbing self-portrait of a man who has thought deeply about his place in society as well as humanity's place in the natural world.
The Star Thrower (1978)
His friend and science fiction author Ray Bradbury wrote, "The book will be read and cherished in the year 2001. It will go to the Moon and Mars with future generations. Loren Eiseley's work changed my life." And from the Philadelphia Sunday Bulletin: "An astonishing breadth of knowledge, infinite capacity for wonder and compassionate interest for everyone and everything in the universe.
Darwin and the Mysterious Mr. X (1979)
Darwin and the Mysterious Mr. X attempts to solve a mystery: "Samuel Butler, a master of acrimonious polemic, confronted Charles Darwin with the sorest of all scientific subjects—a dispute about priority. In Evolution Old and New (1879), Butler accused Darwin of slighting the evolutionary speculations of Buffon, Lamarck, and his own grandfather, Erasmus Darwin." The Kirkus Reviews calls it, "... an essay devoted to resurrecting the name and importance of Edward Blyth, a 19th-century naturalist. Eiseley credits Blyth with the development of the idea, and even the coining of the words "natural selection," which Darwin absorbed and enlarged upon ... [and] some thoughts on Darwin's Descent of Man; and a concluding speculation on the meaning of evolution. The last piece is very much Eiseley's poetic from-whence-do-we come/whither-do-we-go vein." Many experts on Darwin such as Stephen Jay Gould disagreed with Eisley. Michael Ruse, a philosopher of science, even stated "If a work like this was handed into me for a course. I would give it a failing grade." Howard Gruber wrote that "Eiseley was wrong on every count, both in the broad picture he painted of the Darwin‐Blyth relationship and in the minutiae he scratched up to support his claims."

Posthumous

The Lost Notebooks of Loren Eiseley (1987) Read excerpts online
Just before his death Eiseley asked his wife to destroy the personal notebooks which he had kept since 1953. However, she compromised by disassembling them so they couldn't be used. Later, after great effort, his good friend Kenneth Heuer managed to reassemble most of his notebooks into readable form. The Lost Notebooks of Loren Eiseley includes a variety of Eiseley's writings including childhood stories, sketches while he was a vagabond, old family pictures, unpublished poems, portions of unfinished novels, and letters to and from literary admirers like W.H. Auden, Howard Nemerov, Lewis Mumford and Ray Bradbury

In a review of the book, author Robert Finch writes, "Like Melville, Eiseley thought of himself, and by extension all mankind, as 'an orphan, a wood child, a changeling,' a cosmic outcast born into a world that afforded him no true home." He adds that his "distinctive gift as a writer was to take powerfully formative personal influences of family and place and fuse them with his intellectual meditations on universal topics such as evolution, human consciousness and the weight of time. ... he found metaphors that released a powerful view of man's fate in the modern world." As Kenneth Heuer writes, "there are countless examples of Eiseley's empathy with life in all its forms, and particularly with its lost outcasts ... the love that transcends the boundaries of species was the highest spiritual expression he knew.

Finch adds, "We are grateful for a life and a sensibility that would be welcome in any age, but never more so than in our increasingly depersonalized world. ... he made a generation of readers 'see the world through his eyes.' In an undated passage, circa 1959, Eiseley wrote, 'Man is alone in the universe ... Only in the act of love, in rare and hidden communion with nature, does man escape himself.'" The Lost Notebooks contains numerous examples of his "creative and sympathetic imagination, even when that creation takes place in the solitude of journals never meant for public eyes."

From other reviews: "Eiseley has rightly been called 'the modern Thoreau.'" –Publishers Weekly; "[an] extensive and enlightening glimpses ... into the intellectual and emotional workshop of one of the most original and influential American essayists of this century." –New York Times Book Review; "Eiseley's great genius for the art of the word coupled with a poetic insight into the connection between science and humanism shines through in page after page ... This is a book that will be read and quoted and whose pages will grow thin with wear from hands in continued search of new meaning within its words and images." –Los Angeles Times; "it will enhance any dedicated reader's knowledge of this most remarkable literary naturalist ... They provide more than a glimpse into Eiseley's mind and imagination." –The Bloomsbury Review; "It is a joy, like finding a lost Rembrandt in the attic, to discover that Eiseley left behind a legacy." –San Francisco Examiner-Chronicle.

Philosophical significance

Religion

Richard Wentz, professor of religious studies, noted that The Christian Century magazine called attention to a study of Loren Eiseley by saying: "The religious chord did not sound in him, but he vibrated to many of the concerns historically related to religion." Wentz adds, "Although Eiseley may not have considered his writing as an expression of American spiritually, one feels that he was quite mindful of its religious character. As an heir of Emerson and Thoreau, he is at home among the poets and philosophers and among those scientists whose observations also were a form of contemplation of the universe." 

But Wentz considered the inherent contradictions in the statements: "We do not really know what to do with religiousness when it expresses itself outside those enclosures which historians and social scientists have carefully labeled religions. What, after all, does it mean to say, "the religious chord does not sound in someone," but that the person vibrates to the concerns historically related to religion? If the person vibrates to such concerns, the chord is religious whether or not it manages to resound in the temples and prayer houses of the devout."

Wentz quotes Eiseley, from All the Strange Hours and The Star Thrower, to indicate that he was, in fact, a religious thinker:
I am treading deeper and deeper into leaves and silence. I see more faces watching, non-human faces. Ironically, I who profess no religion find the whole of my life a religious pilgrimage.

The religious forms of the present leave me unmoved. My eye is round, open, and undomesticated as an owl's in a primeval forest -- a world that for me has never truly departed.

Like the toad in my shirt we were in the hands of God, but we could not feel him; he was beyond us, totally and terribly beyond our limited- senses.


Man is not as other creatures and ... without the sense of the holy, without compassion, his brain can become a gray stalking horror -- the deviser of Belsen.

Wentz encompasses such quotes in his partial conclusion:
He was indeed a scientist – a bone hunter, he called himself. Archaeologist, anthropologist and naturalist, he devoted a great deal of time and reflection to the detective work of scientific observation. However, if we are to take seriously his essays, we cannot ignore the evidence of his constant meditation on matters of ultimate order and meaning. Science writer Connie Barlow says Eiseley wrote eloquent books from a perspective that today would be called Religious Naturalism

Evolution

Wentz writes, "Loren Eiseley is very much in the tradition of Henry David Thoreau. He takes the circumstances of whatever "business" he is about as the occasion for new questioning, new searching for some sign, some glimpse into the meaning of the unknown that confronts him at every center of existence." He quotes Eiseley from The Star Thrower, "We are, in actuality, students of that greater order known as nature. It is into nature that man vanishes." 

In comparing Eiseley with Thoreau, he discusses clear similarities in their life and philosophies. He notes that Eiseley was, like Thoreau, a 'spiritual wanderer through the deserts of the modern world.' However, notes Wentz, "Thoreau had left the seclusion of Walden Pond in order to pace the fields of history, sorting out the artifacts that people had dropped along the way." But "it was those 'fossil thoughts' and 'mindprints' that Eiseley himself explored in his wanderings. These explorations gave depth, a tragic dimension and catharsis to what he called the 'one great drama that concerns us most, the supreme mystery, man.'"

Eiseley's writing often includes his belief that mankind does not have enough evidence to determine exactly how humans came to be. In The Immense Journey, he writes, "... many lines of seeming relatives, rather than merely one, lead to man. It is as though we stood at the heart of a maze and no longer remembered how we had come there." According to Wentz, Eiseley realized that there is nothing below a certain depth that can truly be explained, and quotes Eiseley as saying that there is "nothing to explain the necessity of life, nothing to explain the hunger of the elements to become life. ... " and that "the human version of evolutionary events [is] perhaps too simplistic for belief." 

Science and progress

Eiseley talked about the illusions of science in his book, The Firmament of Time:
A scientist writing around the turn of the century remarked that all of the past generations of men have lived and died in a world of illusion. The unconscious irony in his observation consists in the fact that this man assumed the progress of science to have been so great that a clear vision of the world without illusion was, by his own time, possible. It is needless to add that he wrote before Einstein ... at a time when Mendel was just about to be rediscovered, and before the advances in the study of radioactivity ...
Wentz noted Eiseley's belief that science may have become misguided in its goals: "Loren Eiseley thought that much of the modern scientific enterprise had removed humanity ever farther from its sense of responsibility to the natural world it had left in order to create an artificial world to satisfy its own insatiable appetites." Interpreting Eiseley's messages, he adds, "It would be well, he tells us, to heed the message of the Buddha, who knew that 'one cannot proceed upon the path of human transcendence until one has made interiorly in one's soul a road into the future.' Spaces within stretch as far as those without." 

Purpose for mankind

"In essay after essay," writes Wentz, "he writes as a magus, a spiritual master or a shaman who has seen into the very heart of the universe and shares his healing vision with those who live in a world of feeble sight. We must learn to see again, he tells us; we must rediscover the true center of the self in the otherness of nature." 

Death and burial

Loren Eiseley's headstone in West Laurel Hill Cemetery - "We loved the earth but could not stay"
 
Loren Eiseley died July 9, 1977, of cardiac arrest following surgery at the University of Pennsylvania Hospital. He was buried in West Laurel Hill Cemetery in Bala Cynwyd, Pennsylvania. Eiseley's wife, Mabel Langdon Eiseley, died July 27, 1986, and is buried next to him, in the Westlawn section of the cemetery, in Lot 366. The inscription on their headstone reads, "We loved the earth but could not stay", which is a line from his poem The Little Treasures.

A library in the Lincoln City Libraries public library system is named after Eiseley. 

Loren Eiseley was awarded the Distinguished Nebraskan Award and inducted into the Nebraska Hall of Fame. A bust of his likeness resides in the Nebraska State Capitol.

Legacy

In summarizing some of Eiseley's contributions, the editor of The Bloomsbury Review wrote,
There can be no question that Loren Eiseley maintains a place of eminence among nature writers. His extended explorations of human life and mind, set against the backdrop of our own and other universes are like those to be found in every book of nature writing currently available ... We now routinely expect our nature writers to leap across the chasm between science, natural history, and poetry with grace and ease. Eiseley made the leap at a time when science was science, and literature was, well, literature ... His writing delivered science to nonscientists in the lyrical language of earthly metaphor, irony, simile, and narrative, all paced like a good mystery.
On October 25, 2007, the Governor of Nebraska, Dave Heineman, officially declared that year "The Centennial Year of Loren Eiseley." In a written proclamation, he encouraged all Nebraskans
to read Loren Eisely's writings and to appreciate in those writings the richness and beauty of his language, his ability to depict the long, slow passage of time and the meaning of the past in the present, his portrayal of the relationships among all living things and his concern for the future.

Bibliography

Major works
  • Charles Darwin, (1956) W.H. Freeman
  • The Immense Journey (1957) Vintage Books, Random House
  • Darwin's Century (1958) Doubleday
  • The Firmament of Time (1960) Atheneum
  • The Man Who Saw Through Time (1973) Scribner
  • The Mind as Nature (1962) Harper and Row
  • Man, Time, and Prophecy, (1966) Harcourt, Brace & World
  • The Unexpected Universe (1969) Harcourt, Brace and World
  • The Invisible Pyramid: A Naturalist Analyses the Rocket Century (1971) Devin-Adair Pub.
  • The Night Country: Reflections of a Bone-Hunting Man (1971) Scribner
  • Another Kind of Autumn (1977) Scribner
  • The Star Thrower (1978) Times Books, Random House
  • Darwin and the Mysterious Mr. X: New Light on the Evolutionists (1979) E.P. Dutton
  • The Lost Notebooks of Loren Eiseley, Kenneth Heuer editor, (1987) Little Brown & Co.
  • How Flowers Changed the World, with photographs by Gerald Ackerman. (1996) Random House
Anthology
  • Loren Eiseley: Collected Essays on Evolution, Nature, and the Cosmos (boxed set in 2 volumes) -- edited by William Cronon
Contains The Immense Journey, The Firmament of Time, The Unexpected Universe, The Invisible Pyramid, The Night Country, essays from The Star Thrower, and uncollected prose (2016) Library of America.
Memoirs
  • All The Strange Hours: The Excavation of a Life (1975) Scribner
  • The Brown Wasps: A Collection of Three Essays in Autobiography (1969) Perishable Press, Mount Horeb, WI
Poetry
  • Notes of an Alchemist (1972) Scribner, McMillan
  • The Innocent Assassins (1973) Scribner
  • All The Night Wings (1978) Times Books

Australo-Melanesian

From Wikipedia, the free encyclopedia

Gallery of portraits of Aboriginal Australians (The New Student's Reference Work, 1914 edition, volume 1, p. 178.)
 
In physical anthropology, forensic anthropology and archaeogenetics, Australo-Melanesians (also Australasian, Australomelanesoid or Australoid) form a large group of populations indigenous to Maritime Southeast Asia and Oceania

The group includes Papuans, Aboriginal Australians, Melanesians (mainly from Fiji, New Caledonia and Vanuatu) and the populations grouped as "Negrito" (the Andamanese, the Semang and Batek people, the Maniq people, the Aeta people, the Ati people, and various other ethnic groups in the Philippines). 

The Vedda people in Sri Lanka and a number of dark-skinned tribal populations in the interior of the Indian subcontinent (mainly Dravidian-speaking groups and some Austroasiatic-speaking peoples, like Munda) are also suggested to belong to the Australoid group, but there are controversies about this inclusion. A research involving cranial morphology, made by Indian anthropologists, however, suggests that the South Asian Indian populations have different cranial characteristics from Australoid groups. This difference got possibly strengthened in recent times due to the miscegenation with peoples of different origins. A genetic study in 1985 suggested connections between tribal peoples of Southern India, Sri Lanka and Negrito populations of the Philippines and Malaysia. Nevertheless, a more recent study sustains that the Southern Indian populations are not closely related to the classic Australo-Melanesian groups.

The term "Australioid race" was introduced by Thomas Huxley in 1870 to refer to certain peoples indigenous to South and Southeast Asia and Oceania. Terms associated with outdated notions of racial types, such as those ending in "-oid" have come to be seen as potentially offensive and related to scientific racism.

According to a large craniometric study (Raghavan and Bulbeck et al. 2013) the native populations of South Asia (India and Sri Lanka) have distinct craniometric and anthropologic ancestry. Both southern and northern groups are most similar to each other and have generally closer affinities to various "Caucasoid" groups. The study further showed that the native South Asians (including the Vedda) form a distinct group and are not related to the "Australoid" group.
If there were an Australoid “substratum” component to Indians’ ancestry, we would expect some degree of craniometric similarity between Howells’ Southwest Pacific series and Indians. But in fact, the Southwest Pacific and Indian are craniometrically very distinct, falsifying any claim for an Australoid substratum in India.
— Pathmanathan Raghavan, David Bulbeck, Gayathiri Pathmanathan and Suresh Kanta Rathee, Indian Craniometric Variability and Affinities (2013)

Terminological history

Australians were marked as Negroid on the racial Meyers Konversations-Lexikon (1885-90)
 
The term "Australoid" was coined in ethnology in the mid 19th century, describing tribes or populations "of the type of native Australians". In physical anthropology, Australoid is used for morphological features characteristic of Aboriginal Australians by Daniel John Cunningham in his Text-book of Anatomy (1902).

An Australioid (sic, with an additional -i-) racial group was first proposed by Thomas Huxley in an essay On the Geographical Distribution of the Chief Modifications of Mankind (1870), in which he divided humanity into four principal groups (Xanthochroic, Mongoloid, Negroid, and Australioid). Huxley's original model included the native inhabitants of South Asia under the Australoid category. Huxley further classified the Melanochroi (Peoples of the Mediterranean race) as a mixture of the Xanthochroi (northern Europeans) and Australioids. Huxley (1870) described Australioids as dolichocephalic; their hair as usually silky, black and wavy or curly, with large, heavy jaws and prognathism, with skin of the color of chocolate and with irises that are dark brown or black.

The term "Proto-Australoid" was used by Roland Burrage Dixon in his Racial History of Man (1923). In a 1962 publication, Australoid was described as one of the five major human races alongside Caucasoid, Mongoloid, Congoid and Capoid.

In The Origin of Races (1962), Carleton Coon attempted to refine such scientific racism by introducing a system of five races with separate origins. Based on such evidence as claiming Australoids had the largest, megadont teeth, this group was assessed by Coon as being the most archaic and therefore the most primitive and backward. Coon's methods and conclusions were later discredited and show either a "poor understanding of human cultural history and evolution or his use of ethnology for a racialist agenda."

Bellwood (1985) uses the terms "Australoid", "Australomelanesoid" and "Australo-Melanesians" to describe the genetic heritage of "the Southern Mongoloid populations of Indonesia and Malaysia".
Since the 1980s, anthropological terms in "-oid" have come to be avoided in some disciplines, especially in the United States, where the term Australo-Melanesian is now preferred. In other areas, specifically in anthropological literature in India, the term Australoid continues to be preferred.

Distribution

Distribution of the races after the Pleistocene according to Carleton Coon (1962).
  Caucasoid race
  Congoid race
  Capoid race
  Mongoloid race
  Australoid race

[DJS -- Isn't the classification of humans into "races" considered scientifically obsolete?]
Besides the Australian Aboriginals, Melanesians and Negritos, the "Australoid" category is often taken to include various tribes of India. The inclusion of Indian tribes in the group is not well-defined, and is closely related to the question of the original peopling of India, and the possible shared ancestry between Indian and Australian populations of the Upper Paleolithic. The American Journal of Physical Anthropology (1996, p. 382) by American Association of Physical Anthropologists. Luigi Luca Cavalli-Sforza, Paolo Menozzi and Alberto Piazza in their text, The History and Geography of Human Genes (1994, P. 241) all use the term.

Tee suggested Australoid ancestry of the original South Asian populations has long remained an open question. It was embraced by Indian anthropologists as emphasizing the deep antiquity of Indian prehistory. Australoid hunter-gatherer and fisherman tribes of the interior of India were identified with the Nishada Kingdom described in the Mahabharata. Panchanan Mitra (1923) following Vincenzo Giuffrida-Ruggeri (1913) recognizes a Pre-Dravidian Australo-Veddaic stratum in India. Alternatively, the Dravidians themselves have been claimed as originally of Australoid stock, a view held by Biraja Sankar Guha among others.

South Indian tribes specifically described as having Australoid affinities include the Oraon, Munda, Santal, Bhil, Gondi, the Kadars of Kerala, the Kurumba and Irula of the Nilgiris, the Paniyans of Malabar, the Uralis, Kannikars, Mithuvan and Chenchus. but other Indian anthropologists of the post-colonial period, such as S. P. Sharma (1971) and D. N. Majumdar (1946, 1965), have gone as far as claiming Australoid ancestry, to a greater or lesser extent, for almost all the castes and tribes of India. Newer Indian anthropology studies about cranial morphology do not support an Australoid ancestry in South Asian populations.

Physical features

Makassan man from Sulawesi, Indonesia. According to archaeologist Peter Bellwood, the vast majority of people in Indonesia and Malaysia, the region he calls the "clinal Mongoloid-Australoid zone", are "Southern Mongoloids" but have a high degree of Australoid admixture.
 
In physical anthropology, the Australo-Melanesian group is characterized primariliy by its characteristic dental morphology. In Java, "Australo-Melanesian dentitions" are found in fossils until the mid-Holocene (c. 5,000 years ago), but are replaced by modern "Southern Mongoloid dentitions" (Sundadonty) in the Neolithic, suggesting the displacement of the aboriginal Australo-Melanesian population by the Austronesian expansion.

Genetics

Numerous studies of archaeogenetics performed during 2009–2016 have suggested that Eurasian populations can be derived from an early division of the non-African lineage into an eastern and a western clade lineage before around 40,000 years ago. It has been argued, however, that this model of a primary split between eastern and western Eurasians is invalid for Oceania and Southeast Asia. The so-called "southern-route hypothesis" derives an Australasian lineage, comprising Australians, New Guineans, and possibly Southeast Asian Negritos, from an early out-of-Africa dispersal, forming an ancestral lineage which split off the other non-African lineages prior to the Eastern Eurasian vs. Western Eurasian split. A number of 2016 studies have presented a refined model of Australasian ancestry. Reviewing the evidence, Lipson and Reich (2017) present as best-fitting model a derivation of the Australasian clade from the Eastern Eurasian clade at an early time, with sustantial Denisovan admixture (of the order of 4%) before the Ausralasian clade split into the Australian and the New Guinean lineages.

Pugach et al. (2013) find an ancestral association between Aboriginal Australians, New Guineans and the Mamanwa Negritos, with an estimated divergence time of at least 35,000 years, in support of the "southern migration route" scenario. In addition, the study finds evidence of gene flow between India and Australia at a later time, an estimated 141 generations ago (i.e. roughly 3,000 to 4,000 years ago), suggesting a possible late migration wave to Australia.

A 2006 CFSL research article which assessed "3522 individuals belonging to 54 (23 belonging to the Austroasiatic, 18 to Dravidian, 7 to Tibeto-Burman and 24 to Indo-European linguistic groups) endogamous Indian populations, representing all major ethnic, linguistic and geographic groups" for genetic variations to support such classifications found no conclusive evidence. It further summed that "the absence of genetic markers to support the general clustering of population groups based on ethnic, linguistic, geographic or socio-cultural affiliations" undermines the broad groupings based on such affiliations that exist in population genetic studies and forensic databases.

Another study (Rosenbert et al.), analysing the whole genome of worldwide populations, grouped the South Asians as own distinct group. The study results suggest that there are 5 major human groups:
  • Subsaharan-African (Negroid)
  • West-Eurasian (Caucasoid)
  • South-Asian ("Dravidoid")
  • East-Asian (Mongoloid)
  • Melanesian (Australoid)

Possible early presence in the Americas

A cast of the Luzia Woman's skull
 
A speculative theory of Walter Neves in the 1990s proposes that an early Australoid population may have been the earliest occupants of the New World. The theory was based on an analysis of the Luzia Woman fossil found in Brazil, and found tentative academic support.

If this hypothesis is correct, it would mean that some Australoid groups continued the Great Coastal Migration beyond Southeast Asia, along the continental shelf north in East Asia and across the Bering land bridge, reaching the Americas by about 50,000 years ago.

Genetic evidence

In 2015, two major studies of the DNA of living and ancient people detect in modern Native Americans a trace of DNA related to that of native people from Australia and Melanesia. Australasian admixture in some living Native Americans, including those of the Aleutian Islands and the Surui people of Amazonian Brazil. Evidence of Australasian admixture in Amazonian populations was found by Skoglund and Reich (2016).

Walter Neves and Mark Hubbe argue that these people descended from an early wave of migration that was separate from the one that gave rise to today’s Native Americans, and drew on a different source population in Asia.

Morphology

Christy Turner notes that "cranial analyses of some South American crania have suggested that there might have been some early migration of "Australoids." However, Turner argues that cranial morphology suggests sinodonty in all the populations he has studied.

One of the earliest skulls discovered in the Americas by archaeologists is an Upper Paleolithic specimen named the Luzia Woman. According to Neves, Luzia's Paleo-Indian predecessors lived in South East Asia for tens of thousands of years, after migrating from Africa, and began arriving in the New World, as early as 15,000 years ago. Some anthropologists have hypothesized that Paleo-Indians migrated along the coast of East Asia and Beringia in small watercraft, before or during the LGM. Neves' conclusions have been challenged researchers who argued that the cranio-facial variability could just be due to genetic drift and other factors affecting cranio-facial plasticity in Native Americans.

In November 2018, scientists of the University of São Paulo and Harvard University released a study that contradicts the alleged Australo-Melanesian physical appearance of Luzia. Using DNA sequencing, the results showed that Luzia had Mongoloid features. The bust of Luzia displaying African features was done in the 1990's. "However, skull shape isn't a reliable marker of ancestrality or geographic origin. Genetics is the best basis for this type of inference," Strauss explained."The genetic results of the new study show categorically that there was no significant connection between the Lagoa Santa people and groups from Africa or Australia. So the hypothesis that Luzia's people derived from a migratory wave prior to the ancestors of today's Amerindians has been disproved. On the contrary, the DNA shows that Luzia's people were entirely Amerindian."

Oldowan

From Wikipedia, the free encyclopedia

Oldowan
Canto tallado 2-Guelmim-Es Semara.jpg
Geographical rangeAfro-Eurasia
PeriodLower Paleolithic
Dates2.6 million years BP – 1.7 million years BP
Major sitesOlduvai Gorge
Preceded byLomekwian
Followed byAcheulean, Riwat

The Oldowan (or Mode I) is the earliest widespread stone tool archaeological industry (style) in prehistory. These early tools were simple, usually made with one or a few flakes chipped off with another stone. Oldowan tools were used during the Lower Paleolithic period, 2.6 million years ago up until 1.7 million years ago, by ancient Hominin (early humans) across much of Africa, South Asia, the Middle East and Europe. This technological industry was followed by the more sophisticated Acheulean industry.

Oldowan is pre-dated by Lomekwian tools at a single site dated to 3.3 mya (million years ago). It is not clear if the Lomekwian industry bears any relation to the Oldowan.

The term Oldowan is taken from the site of Olduvai Gorge in Tanzania, where the first Oldowan lithics were discovered by the archaeologist Louis Leakey in the 1930s. However, some contemporary archaeologists and palaeoanthropologists prefer to use the term Mode 1 tools to designate pebble tool industries (including Oldowan), with Mode 2 designating bifacially worked tools (including Acheulean handaxes), Mode 3 designating prepared-core tools, and so forth.

Classification of Oldowan tools is still somewhat contentious. Mary Leakey was the first to create a system to classify Oldowan assemblages, and built her system based on prescribed use. The system included choppers, scrapers, and pounders. However, more recent classifications of Oldowan assemblages have been made that focus primarily on manufacture due to the problematic nature of assuming use from stone artefacts. An example is Isaac et al.'s tri-modal categories of "Flaked Pieces" (cores/choppers), "Detached Pieces" (flakes and fragments), "Pounded Pieces" (cobbles utilized as hammerstones, etc.) and "Unmodified Pieces" (manuports, stones transported to sites). Oldowan tools are sometimes called "pebble tools", so named because the blanks chosen for their production already resemble, in pebble form, the final product.

It is not known for sure which hominin species created and used Oldowan tools. Its emergence is often associated with the species Australopithecus garhi and its flourishing with early species of Homo such as H. habilis and H. ergaster. Early Homo erectus appears to inherit Oldowan technology and refines it into the Acheulean industry beginning 1.7 million years ago.

Dates and ranges

The oldest known Oldowan tools have been found in Gona, Ethiopia, and are dated to about 2.6 mya.

The use of tools by apes including chimpanzees and orangutans can be used to argue in favour of tool-use as an ancestral feature of the hominin family. Tools made from bone, wood, or other organic materials were therefore in all probability used before the Oldowan. Oldowan stone tools are simply the oldest recognisable tools which have been preserved in the archaeological record. 

There is a flourishing of Oldowan tools in eastern Africa, spreading to southern Africa, between 2.4 and 1.7 mya. At 1.7 mya., the first Acheulean tools appear even as Oldowan assemblages continue to be produced. Both technologies are occasionally found in the same areas, dating to the same time periods. This realisation required a rethinking of old cultural sequences in which the more "advanced" Acheulean was supposed to have succeeded the Oldowan. The different traditions may have been used by different species of hominins living in the same area, or multiple techniques may have been used by an individual species in response to different circumstances. 

Sometime before 1.8 mya Homo erectus had spread outside of Africa, reaching as far east as Java by 1.8 mya and in Northern China by 1.66 mya. In these newly colonised areas, no Acheulean assemblages have been found. In China, only "Mode 1" Oldowan assemblages were produced, while in Indonesia stone tools from this age are unknown.

By 1.8 mya early Homo was present in Europe, as shown by the discovery of fossil remains and Oldowan tools in Dmanisi, Georgia. Remains of their activities have also been excavated in Spain at sites in the Guadix-Baza basin and near Atapuerca. Most early European sites yield "Mode 1" or Oldowan assemblages. The earliest Acheulean sites in Europe only appear around 0.5 mya. In addition, the Acheulean tradition does not seem to spread to Eastern Asia. It is unclear from the archaeological record when the production of Oldowan technologies ended. Other tool-making traditions seem to have supplanted Oldowan technologies by 0.25 mya.

Tools

Manufacture

To obtain an Oldowan tool, a roughly spherical hammerstone is struck on the edge, or striking platform, of a suitable core rock to produce a conchoidal fracture with sharp edges useful for various purposes. The process is often called lithic reduction. The chip removed by the blow is the flake. Below the point of impact on the core is a characteristic bulb with fine fissures on the fracture surface. The flake evidences ripple marks.

The materials of the tools were for the most part quartz, quartzite, basalt, or obsidian, and later flint and chert. Any rock that can hold an edge will do. The main source of these rocks is river cobbles, which provide both hammer stones and striking platforms. The earliest tools were simply split cobbles. It is not always clear which is the flake. Later tool-makers clearly identified and reworked flakes. Complaints that artifacts could not be distinguished from naturally fractured stone have helped spark careful studies of Oldowon techniques. These techniques have now been duplicated many times by archaeologists and other knappers, making misidentification of archaeological finds less likely. 

Use of bone tools by hominins also producing Oldowan tools is known from Swartkrans, where a bone shaft with a polished point was discovered in Member (layer) I, dated 1.8–1.5 mya. The Osteodontokeratic industry, the "bone-tooth-horn" industry hypothesized by Raymond Dart, is less certain.

Shapes and uses

Oldowan-tradition stone chopper.
 
Mary Leakey classified the Oldowan tools as Heavy Duty, Light Duty, Utilized Pieces and Debitage, or waste. Heavy-duty tools are mainly cores. A chopper has an edge on one side. It is unifacial if the edge was created by flaking on one face of the core, or bifacial if on two. Discoid tools are roughly circular with a peripheral edge. Polyhedral tools are edged in the shape of a polyhedron. In addition there are spheroidal hammer stones.

Light-duty tools are mainly flakes. There are scrapers, awls (with points for boring) and burins (with points for engraving). Some of these functions belong also to heavy-duty tools. For example, there are heavy-duty scrapers.

Utilized pieces are tools that began with one purpose in mind but were utilized opportunistically.

Oldowan tools were probably used for many purposes, which have been discovered from observation of modern apes and hunter-gatherers. Nuts and bones are cracked by hitting them with hammer stones on a stone used as an anvil. Battered and pitted stones testify to this possible use. 

Heavy-duty tools could be used as axes for woodworking. Both choppers and large flakes were probably used for this purpose. Once a branch was separated, it could be scraped clean with a scraper, or hollowed with pointed tools. Such uses are attested by characteristic microscopic alterations of edges used to scrape wood. Oldowan tools could also have been used for preparing hides. Hides must be cut by slicing, piercing and scraping them clean of residues. Flakes are most suitable for this purpose. 

Lawrence Keeley, following in the footsteps of Sergei Semenov, conducted microscopic studies (with a high-powered optical microscope) on the edges of tools manufactured de novo and used for the originally speculative purposes described above. He found that the marks were characteristic of the use and matched marks on prehistoric tools. Studies of the cut marks on bones using an electron microscope produce a similar result.

Abbevillian

Abbevillian is a currently obsolescent name for a tool tradition that is increasingly coming to be called Oldowan. The label Abbevillian prevailed until the Leakey family discovered older (yet similar) artifacts at Olduvai Gorge (a.k.a. Oldupai Gorge) and promoted the African origin of man. Oldowan soon replaced Abbevillian in describing African and Asian lithics. The term Abbevillian is still used but is now restricted to Europe. The label, however, continues to lose popularity as a scientific designation. 

In the late 20th century, discovery of the discrepancies in date caused a crisis of definition. If Abbevillian did not necessarily precede Acheulean and both traditions had flakes and bifaces, how was the difference to be defined? It was in this spirit that many artifacts formerly considered Abbevillian were labeled Acheulean. In consideration of the difficulty, some preferred to name both phases Acheulean. When the topic of Abbevillian came up, it was simply put down as a phase of Acheulean. Whatever was from Africa was Oldowan, and whatever from Europe, Acheulean.

The solution to the definition problem is stated in the article on Acheulean. The difference is to be defined in terms of complexity. Simply struck tools are Oldowan. Retouched, or reworked tools are Acheulean. Retouching is a second working of the artifact. The manufacturer first creates an Oldowan tool. Then he reworks or retouches the edges by removing very small chips so as to straighten and sharpen the edge. Typically but not necessarily the reworking is accomplished by pressure flaking. 

The pictures in the introduction to this article are mainly labeled Acheulean, but this is the now false Acheulean, which also includes Abbevillian. The artifacts shown are clearly in the Oldowan tradition. One or two of the more complex bifaces may have edges made straighter by a large percussion or two, but there is no sign of pressure flaking as depicted. The pictures included with this subsection show the difference.

Tool users

Current anthropological thinking is that Oldowan tools were made by late Australopithecus and early Homo. Homo habilis was named "skillful" because it was considered the earliest tool-using human ancestor. Indeed, the genus Homo was in origin intended to separate tool-using species from their tool-less predecessors, hence the name of Australopithecus garhi, garhi meaning "surprise", a tool-using Australopithecine discovered in 1996 and described as the "missing link" between the Australopithecus and Homo genera. There is also evidence that some species of Paranthropus utilized stone tools.

Artistic interpretation of a female member of the Australopithecus genus. The emergence of Oldowan tools is often associated with the species Australopithecus garhi.
 
There is presently no evidence to show that Oldowan tools were the sole creation of members of the Homo line or that the ability to produce them was a special characteristic of only our ancestors. Research on tool use by modern wild chimpanzees in West Africa shows there is an operational sequence when chimpanzees use lithic implements to crack nuts. In the course of nut cracking, sometimes they will create unintentional flakes. Although the morphology of chimpanzees' hammer is different from Oldowan hammer, chimpanzees' ability to use stone tools indicates that the earliest lithic industries were probably not produced by only one kind of hominin species.

The makers of Oldowan tools were mainly right-handed. "Handedness" (lateralization) had thus already evolved, though it is not clear how related to modern lateralization it was, since other animals show handedness as well.

In the mid-1970s, Glynn Isaac touched off a debate by proposing that human ancestors of this period had a "place of origin" and that they foraged outward from this home base, returning with high-quality food to share and to be processed. Over the course of the last 30 years, a variety of competing theories about how foraging occurred have been proposed, each one implying certain kinds of social strategy. The available evidence from the distribution of tools and remains is not enough to decide which theories are the most probable. However, three main groups of theories predominate.
  • Glynn Isaac's model became the Central Forage Point, as he responded to critics that accused him of attributing too much "modern" behavior to early hominins with relatively free-form searches outward.
  • A second group of models took modern chimpanzee behavior as a starting point, having the hominids use relatively fixed routes of foraging, and leaving tools where it was best to do so on a constant track.
  • A third group of theories had relatively loose bands scouring the range, taking care to move carcasses from dangerous death sites and leaving tools more or less at random.
Each group of models implies different grouping and social strategies, from the relative altruism of central base models to the relatively disjointed search models.

Hominins probably lived in social groups that had contact with others. This conclusion is supported by the large number of bones at many sites, too large to be the work of one individual, and all of the scatter patterns implying many different individuals. Since modern primates in Africa have fluid boundaries between groups, as individuals enter, become the focus of bands, and others leave, it is also probable that the tools we find are the result of many overlapping groups working the same territories, and perhaps competing over them. Because of the huge expanse of time and the multiplicity of species associated with possible Oldowan tools, it is difficult to be more precise than this, since it is almost certain that different social groupings were used at different times and in different places.

There is also the question of what mix of hunting, gathering and scavenging the tool users employed. Early models focused on the tool users as hunters. The animals butchered by the tools include waterbuck, hartebeest, springbok, pig and zebra. However, the disposition of the bones allows some question about hominin methods of obtaining meat. That they were omnivores is unquestioned, as the digging implement and the probable use of hammer stones to smash nuts indicate. Lewis Binford first noticed that the bones at Olduvai contained a disproportionately high incidence of extremities, which are low in food substance. He concluded other predators had taken the best meat, and the hominins had only scavenged. The counter view is that while hunting many large animals would be beyond the reach of an individual human, groups could bring down larger game, as pack hunting animals are capable of doing. Moreover, since many animals both hunt and scavenge, it is possible that hominins hunted smaller animals, but were not above driving carnivores from larger kills, as they probably were driven from kills themselves from time to time.

Sites and archaeologists

Africa

Ethiopia

Oldowan choppers dating to 1.7 million years BP, from Melka Kunture, Ethiopia
Afar Triangle
Sites in the Gona river system in the Hadar region of the Afar triangle, excavated by Helene Roche, J. W. Harris and Sileshi Semaw, yielded some of the oldest known Oldowan assemblages, dating to about 2.6 million years ago. Raw material analysis done by Semaw showed that some assemblages in this region are biased towards a certain material (e.g.: 70% of the artifacts at sites EG10 and EG12 were composed of trachyte) indicating a selectivity in the quality of stone used. Recent excavations have yielded tools in association with cut-marked bones, indicating that Oldowan were used in meat-processing or -acquiring activities.
Omo River basin
The second oldest known Oldowan tool site comes from the Shungura formation of the Omo River basin. This formation documents the sediments of the Plio-Pleistocene and provides a record of the hominins that lived there. Lithic assemblages have been classified as Oldowan in members E and F in the lower Omo basin. Although there have been lithic assemblages found in multiple sites in these areas, only the Omo sites 57 and 123 in member F are accepted as hominin lithic remains. The assemblages at Omo sites 71 and 84 in member E do not show evidence of hominin modification and are therefore classified as natural assemblages.

The tools are never found in direct association with the hominins, but archaeologists believe that they would be the strongest candidates for tool manufacture. There are no hominins in those layers, but the same layers elsewhere in the Omo valley contain Paranthropus and early Homo fossils. Paranthropus occurs in the preceding layers. In the last layer at 1.4 million years ago is only Homo erectus.

Egypt

Along the Nile River, within the 100-foot terrace, evidence of Chellean or Oldowan cultures has been found.

Algeria

In November 2018 Science published a report of Oldowan artefacts in a secure dating context of 1.9 to 2.4 million years from four levels in the foothills of the Atlas mountains near the Algerian coast. 

Kenya

Kanjera South, part of the Kanjera site complex, is located on the Homa Peninsula. The site is estimated around 2 million years old. One of the significant excavations, in the area, is Leakey’s expedition in 1932-35. In 1995, Oldowan and Plio-Pleistocene faunal remains surfaced from the site. There has been fieldwork to understand the geochronology of Kanjera.
East Turkana
The numerous Koobi Fora sites on the east side of Lake Turkana are now part of Sibiloi National Park. Sites were initially excavated by Richard Leakey, Meave Leakey, Jack Harris, Glynn Isaac and others. Currently the artifacts found are classified as Oldowan or KBS Oldowan dated from 1.9–1.7 mya, Karari (or "advanced Oldowan") dated to 1.6–1.4 mya, and some early Acheulean at the end of the Karari. Over 200 hominins have been found, including Australopithecus and Homo.

Tanzania

Olduvai Gorge
Chopper from Olduvai Gorge, some 1.8 million years old
 
The Oldowan industry is named after discoveries made in the Olduvai Gorge of Tanzania in east Africa by the Leakey family, primarily Mary Leakey, but also her husband Louis and their son, Richard. Mary Leakey organized a typology of Early Pleistocene stone tools, which developed Oldowan tools into three chronological variants, A, B and C. Developed Oldowan B is of particular interest due to changes in morphology that appear to have been driven mostly by the short term availability of a chert resource from 1.65 mya to 1.53 mya. The flaking properties of this new resource resulted in considerably more core reduction and a higher prevalence of flake retouch. Similar tools had already been found in various locations in Europe and Asia for some time, where they were called Chellean and Abbevillian.

The oldest tool sites are in the East African Rift system, on the sediments of ancient streams and lakes. This is consistent with what we surmise of the evolution of man. Genetic studies tell us that the human line (the hominins) possibly diverged from the chimpanzee line (the hominids), and the native territory of the latter is the forests of Central Africa nearby. Fossil chimpanzees have been found in Kenya.

The forests of central and western Africa are a stable environment containing food in abundance for animals such as chimpanzees, and any species living in such an environment would have been under little pressure to evolve further. Eastern Africa is a land of often harsh and unstable environments, and resources are correspondingly scarcer and more difficult to get. Species living in the latter environment would be under greater pressure to evolve and change as needed to survive. A facility for tool-using would contribute to the species' chances of survival.

Even though Olduvai Gorge is the type site, Oldowan tools from here are not the oldest known examples. They occur in Beds I–IV. Bed I, dated 1.85 mya to 1.7 mya, contains Oldowan and fossils of Paranthropus boisei as well as Homo habilis, as does Bed II, 1.7–1.2 mya. H. habilis gives way to Homo erectus at about 1.6 mya but P. boisei goes on. Oldowan continues to Bed IV at 800,000 to 600,000 before present (BP).

South Africa

Abbé Breuil was the first recognized archaeologist to go on record to assert the existence of Oldowan tools. While his description was for "Chello-Abbevillean" tools, and post-dated Leakey's finds at Olduvai Gorge by at least ten years, his descriptions nonetheless represented the scholarly acceptance of this technology as legitimate. These findings were cited as being from the location of the Vaal River, at Vereeniging, and Breuil noted the distinct absence of a significant number of cores, suggesting a "portable culture". At the time, this was considered very significant, as portability supported the conclusion that the Oldowan tool-makers were capable of planning for future needs, by creating the tools in a location which was distant from their use.
Swartkrans
The Swartkrans site is a cave filled with layered fossil-bearing limestone deposits. Oldowan is found in Members (layers) I–III, 1.8–.5 mya, in association with Paranthropus robustus and Homo habilis. The Member I assemblage also includes a shaft of pointed bone polished at the pointed end. 

Member I contained a high percentage of primate remains compared to other animal remains, which did not fit the hypothesis that H. habilis or P. robustus lived in the cave. C. K. Brain conducted a more detailed study and discovered the cave had been the abode of leopards, who preyed on the hominins.
Sterkfontein
Another site of limestone caves is Sterkfontein, found in South Africa. This site contains a large number of not only Oldowan tools, but also early Acheulean technology. 

Europe

Georgia

Stone tool (Oldowan style) from Dmanisi paleontological site (right, 1.8 mya, replica), to be compared with the more "modern" Acheulean style (left)
 
In 1999 and 2002, two Homo erectus skulls (H. georgicus) were discovered at Dmanisi in southern Georgia. The archaeological layer in which the human remains, hundreds of Oldowan stone tools, and numerous animal bones were unearthed is dated approximately 1.6-1.8 million years ago. The site yields the earliest unequivocal evidence for presence of early humans outside the African continent.

Bulgaria

At Kozarnika, in the ground layers, dated to 1.4-1.6 Ma, archaeologists have discovered a human molar tooth, lower palaeolithic assemblages that belong to a core-and-flake non-Acheulian industry and incised bones that may be the earliest example of human symbolic behaviour.

Russia

Ainikab-1 and Muhkay-2 (North Caucasus, Daghestan) are the extraordinary sites in relation to date and the culture. Geological and geomorphological data, palynological studies and paleomagnetic testing unequivocally point to Early Pleistocene (Eopleistocene), indicating the age of the sites as being within the range of 1.8 – 1.2 Ma.

Spain

Extremely archaic handaxe from the Quaternary fluvial terraces of Duero river (Valladolid, Spain) dated to Oldowan/Abbevillian period (Lower Paleolithic).
 
Typical Acheulean handaxe with tear form, from a superficial site in the Zamora province (Spain), in the Duero river.
 
Oldowan tools have been found at the following sites: Fuente Nueva 3, Barranco del Leon, Sima del Elefante, Atapuerca TD 6.

France

Oldowan tools have been found at: Lézignan-la-Cèbe, 1.5 mya; Abbeville, 1–.5 mya; Vallonnet cave, French Riviera; Soleihac, open-air site in Massif Central. Oldowan tools have also been found at Tautavel in the foothills of the Pyrenees. These were discovered by Henry de Lumbley alongside human remains (cranium). The tools are of limestone and quartz.

Elsewhere

Oldowan tools have been found in Italy at the Monte Poggiolo open air site dated to approximately 850 kya, making them the oldest evidence of human habitation in Italy. In Germany tools have been found in river gravels at Kärlich dating from 300 kya. In the Czech Republic tools have been found in ancient lake deposits at Przeletice and a cave site at Stranska Skala, dated no later than 500 kya. In Hungary tools have been found at a spring site at Vértesszőlős dating from 500 kya.

Asia

Oldowan tools have been found at sites in South Asia and Southwest Asia. In November 2008 tens of sites of Oldowan tools industry were found on the island of Socotra (Yemen).

In Pakistan tools have been found dating from 1.9 mya at Riwat. In Iran tools have been found dating from the Late Pliocene or Early Pleistocene at Kashafrud. In Israel tools have been found dating from 1.4 mya at el 'Ubeidiya.

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