Answer:
The answer is Africa.
Step-by-step explanation:
If you had the ability to travel back in time and you wanted to experience the evolution of humans as a species, you would have to travel back about 200 thousand years back to Africa, to Omo Kibish to be exact, to see the earliest members of Homo Sapiens, which are descendants of older species that lived on the Africa continent.
I hope this answer helps.