The Crossing

Standing on the edge of the Red Sea 60,000 years ago, the first people looked across the water, saw mountains rising above the horizon, and decided to go there. No one knows how they crossed the water, but they did. Somehow, this small band of as few as 150 individuals made their way from Africa to Arabia—from what is now the tiny country of Djibouti on one side to the troubled nation of Yemen on the other.