When did ancestors of modern-day humans first appear?

around 10,000 B. C.

around 200,000 B. C.

around 3500 B. C.

around four million years ago

The first human ancestors appeared between five million and seven million years ago, probably when some apelike creatures in Africa began to walk habitually on two legs. They were flaking crude stone tools by 2.5 million years ago. Then some of them spread from Africa into Asia and Europe after two million years ago

Our earliest human ancestors appeared around five to seven million years ago, and Homo sapiens, our species, came onto the scene around 200,000 years ago.