"Archaeologists are finding widespread evidence that the kingdom of Kush once had influence over a 750-mile stretch of the Nile Valley. Credit Robert Caputo/Aurora/Getty Images
On the periphery of history in antiquity, there was a land known as Kush. Overshadowed by Egypt, to the north, it was a place of uncharted breadth and depth far up the Nile, a mystery verging on myth. One thing the Egyptians did know and recorded — Kush had gold."