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Drug use may have begun 25,000 years ago, new research finds
Archaeological finds push the timeline of habitual drug use back by thousands of years into antiquity.
Human History
4 trends tracked about this subject — the full history, oldest to newest below.
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Science
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Irish Cave Art May Push Human Story Back to 15,000 Years
Newly discovered cave art in Ireland could potentially push the known timeline of human history back by 15,000 years.
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Humanity spoke thousands of languages at the dawn of farming
New research suggests a prehistoric 'golden age' of linguistic diversity where thousands more languages existed before the rise of expanding empires.
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In African cave, Israeli, international scientists find signs of earliest use of fire
An international team of researchers has uncovered evidence in a South African cave suggesting humans used fire nearly 1.8 million years ago.