Facts about Cairo
Settlements in the area around today’s Cairo existed over five thousand years ago. Over the years, the city’s surroundings passed from hand to hand—fr ...
It begins in the suburbs of Cairo, about 175 km (109 mi) south of the Mediterranean coastline. At Cairo, the Nile splits into two arms:
Like the Red Nile, Wadi Howar (Yellow Nile) is fed by rainfall and is now an episodic Nile tributary.
Between 8000 BC and 1000 BC, it fed the Nile continuously with waters from the Ouaddaï highlands located in Chad. It was a vital settlement site between central Africa and the Nile Valley and was one of the major tributaries of the Nile from the Sahara area, which was then a grassland.