during what era did the first human develop
There were not many humans at this time, and they were spread out, rather than living close together. Experts think there were no more than one million humans living during any time of the Paleolithic Era. That might sound like a lot of people, but today there are about seven billion people, 7,000 times more people than in the Paleolithic Era. Archaeological evidence points to humans beginning in the continent of Africa, and later migrating to other continents.