
The Longest Human Story Had No Writing
Prehistory covers the vast stretch from the first stone tools about 3.3 million years ago to the spread of writing much later. The twist is that writing began only around 5,200 years ago.Prehistory and the Invention of Writing

So when does prehistory end?
It does not end everywhere at once. In Egypt, prehistory ended around 3100 BCE BCE while in New Guinea it lasted into the 1870s.Prehistory and the Invention of Writing