Where did modern humankind come from?

Scientists,, scholars, and experts have been trying to find the answer for generations. 

One of the most prominent among them was Kenyan-born Richard Leakey. 

His parents, Louis and Mary Leakey, we're also renowned paleoanthropologists whose work centered on finding the origins of modern humans.

In 1977, Richard Leakey co-authored at groundbreaking book called Origins. But by 1992, he had Unearthed new material the prompted him to write a sequel, called Origins Reconsidered.