The Prehistoric Age : 1700 (1h 1min, jan 1, 1700 y BC – 1h 1min, dec 1, 1700 y BC)

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Prehistory is the period of human activity between the use of the first stone tools ~3.3 million years ago and the invention of writing systems, the earliest of which appeared ~5300 years ago.Technology that predates recorded history. History is the study of the past using written records; it is also the record itself. Anything prior to the first written accounts of history is prehistoric (meaning "before history"), including earlier technologies. About 2.5 million years before writing was developed, technology began with the earliest hominids who used stone tools, which they may have used to start fires, hunt, cut food, and bury their dead.

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