The notion that all humans are descended from a select group of hunter-gatherers based in early east Africa is called Genealogy. While humans have been around for millions of years, the behaviorally modern human emerged between 100,000 and 300,000 years ago. What changed was our ability to have abstract thought. This is what separated us from animals that followed strictly their set behaviors. The earliest evidence of these abstractly thinking humans goes to Blombos Cave. There are rocks etched with designs meant for communication, which signifies a culture among these abstract thinkers. Pre abstractly thinking humans did not have a culture among them as far as we could tell. Blombos Cave marked the beginning of culture in humans. Culture
