The primary river running through Egypt is the Nile River. It is one of the longest rivers in the world, stretching approximately 6,650 kilometers. The Nile has been crucial to Egyptian civilization, providing water for drinking, agriculture, and transportation. The river flows northwards from its sources in East Africa and empties into the Mediterranean Sea. It is historically significant, as many ancient cities, including Cairo and Luxor, are situated along its banks. The Nile's annual flooding deposited nutrient-rich silt, which enabled agriculture to thrive in this otherwise arid region.