The Nile is the river that flows through Egypt and has long been regarded as the country’s lifeline.
The river runs northward through northeastern Africa before reaching the Mediterranean Sea. Its two principal tributaries are the White Nile, whose headwaters are associated with the Great Lakes region, and the Blue Nile, which rises in Ethiopia. They meet at Khartoum in Sudan.
For ancient Egypt, the Nile’s annual flooding deposited fertile silt across otherwise dry land. This supported agriculture, dense settlements, transportation, and the development of one of the world’s earliest complex states. Modern dams, especially the Aswan High Dam, have greatly altered the river’s seasonal flow and expanded irrigation and electricity generation.
The Nile’s exact ranking by length has been debated because measurements depend on which headwater is counted. Its importance to Egyptian history, however, is not in doubt: most of Egypt’s population and farmland remain concentrated in the narrow Nile Valley and delta.