Before 10th Millennia B.C.E.

Dried flowers

Humans begin practicing herbalism

The use of plants as medicines predates written human history. Archaeological evidence indicates that humans were using medicinal plants during the Paleolithic, approximately 60,000 years ago.

Hands performing sign language

Humans invent language

Today, there are various hypotheses about how, why, when, and where language might have emerged.[2]Despite this, there is scarcely more agreement today than a hundred years ago.

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