What accounts for the lack of development from 14,000 BCE to 4,000 BCE?

by [deleted]

[deleted]

Kerrby87

Well, you're missing out on agriculture, the invention of cities to name two big ones. Plus all the technology involved with that.

antiquarian_bookworm

Here's an even bigger question...

We have been the same species for 250,000 years. Why have all the developments seemed to have happened in the past 10,000? What were people doing for 240,000 years?