These events are determined by things like the reproduction of labor, not Earth's solar orbits, which is why a generational timeline is more apropos. Also we h

These events are determined by things like the reproduction of labor, not Earth's solar orbits, which is why a generational timeline is more apropos. Also we have data from a variety of sources, but do not know the exact day when the first person was enslaved in the Fertile Crescent. That aside, I mean right before 10000 years ago, before concepts like slavery, class, surplus etc. began their rise. All human society then were in traveling hunter-gatherer bands.