Timeline of prehistory
This timeline of prehistory outlines selected developments in human prehistory from approximately 320,000 years ago to around 3200 BC. It begins near the age of some of the earliest known fossils attributed to Homo sapiens, discovered at Jebel Irhoud in present-day Morocco, and covers developments in human migration, technology, subsistence, art and settlement through the Paleolithic and early Holocene. For earlier stages of human evolution, see the Timeline of human evolution. Prehistory generally refers to the period before written records, but its endpoint varies between regions. Writing emerged in Mesopotamia by approximately 3200 BC, while written records appeared at different times elsewhere. The date of 3200 BC therefore serves as a conventional endpoint for this timeline rather than a worldwide boundary between prehistory and recorded history. All dates are approximate and may be revised in light of new archaeological discoveries or analyses.
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