The Nile is the river that flows through Cairo and is traditionally regarded as Africa’s longest river.
The river runs northward through northeastern Africa before reaching the Mediterranean Sea. Cairo, Egypt’s capital, grew along the Nile and its fertile floodplain, making the river central to settlement, farming, transport, and Egyptian history. The Nile’s annual flooding once deposited rich silt across agricultural land, although modern dams now regulate much of its flow.
The Nile system has two principal tributaries: the White Nile, whose farthest headwaters are associated with the Great Lakes region, and the Blue Nile, which rises in Ethiopia. They meet at Khartoum in Sudan. The river then passes through Egypt, including Cairo, before dividing into the Nile Delta.
The Amazon is usually considered the world’s largest river by water volume, while the Danube and Yangtze belong to Europe and Asia respectively. Those comparisons do not change the Nile’s central role in African geography and civilization.