Answer:
The Great Rift Valley in Africa
Explanation:
Based on evidence gathered by archaeologists, the earliest humans most likely developed in the "Great Rift Valley in Africa."
The above statement was supported by discovering archaeological evidence gathered by Louis and Mary Leakey. They found between the 1930s and 1969s that the earliest humans developed in the Great Rift Valley in Africa.
They discovered Zinjanthropus boisei and Homó habilis in Kenya, Africa.
