Identical ancestors point: sometime in this period lived the latest subgroup of human population consisting of those that were all common ancestors of all present day humans, the rest having no present day descendants. (jan 2, 8000 BC – jan 1, 3000 BC)
Description:
https://en.wikipedia.org/wiki/Identical_ancestors_point
https://tedlab.mit.edu/~dr/Papers/Rohde-MRCA-two.pdf On the Common Ancestors of All Living Humans
Added to timeline:
Date:
jan 2, 8000 BC
jan 1, 3000 BC
~ 5003 years