When was the first human on Earth?

The first humans, defined as members of the species Homo sapiens, appeared in Africa approximately 300,000 years ago, based on fossil evidence discovered in Jebel Irhoud, Morocco. However, defining "the first human" depends on which evolutionary milestone you're referencing—earlier members of the genus Homo, such as Homo habilis and Homo erectus, emerged between 2 and 3 million years ago and exhibited increasingly human-like traits including tool use, larger brains, and social cooperation.

The emergence of anatomically modern humans was gradual rather than sudden, with populations developing modern features over hundreds of thousands of years through evolutionary processes. The humans who lived 300,000 years ago were anatomically similar to us, but behaviorally modern humans—those exhibiting advanced symbolic thought, art, complex tools, and sophisticated language—didn't fully emerge until roughly 70,000 to 100,000 years ago. This distinction matters because it shows that becoming "human" wasn't a single event but an evolutionary journey, with different populations developing modern characteristics at different times and places before eventually migrating out of Africa to populate the entire planet between 70,000 and 100,000 years ago.