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The Perseus Digital Library was created to provide access to materials of the history of humanity to everyone, with Gregory Crane, the editor-in-chief of the library, stating that "access to the cultural heritage of humanity is a right, not a privilege". [1]
Human history is the record of humankind from prehistory to the present. Modern humans evolved in Africa around 300,000 years ago and initially lived as hunter-gatherers . They migrated out of Africa during the Last Ice Age and had spread across Earth's continental land except Antarctica by the end of the Ice Age 12,000 years ago.
The initial ideas for UNESCO to work on a project illustrating the collective memory of humanity were raised in 1946. Following the establishment of the International Scientific Committee and the formation of international teams to undertake the research, the first edition of this series, The History of Humanity - Scientific and Cultural Development, was completed in 1966.
The timeline of human evolution outlines the major events in the evolutionary lineage of the modern human species, Homo sapiens, throughout the history of life, beginning some 4 billion years ago down to recent evolution within H. sapiens during and since the Last Glacial Period.
The design may have inspired later 'Maps of World History' such as the HistoMap by John B. Sparks, which chronicles four thousand years of world history in a graphic way similar to the enlarging and contracting nation streams presented on Adam's chart. Sparks added the innovation of using a logarithmic scale for the presentation of history.
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Analysis of the Y chromosome is one of the methods used in tracing the history of early humans. Thirteen genetic markers on the Y-chromosome differentiate populations of human beings. It is believed, on the basis of genetic evidence, that all human beings in existence now descend from one single man who lived in Africa about 60,000 years ago. [2]
Big History is an academic discipline that examines history from the Big Bang to the present. Big History resists specialization and searches for universal patterns or trends. It examines long time frames using a multidisciplinary approach based on combining numerous disciplines from science and the humanities.