The Nile River is located in Africa. It is one of the longest rivers in the world, measuring about 6,650 kilometers (around 4,130 miles) and flowing northward through eleven countries, including Uganda, Sudan, and Egypt before emptying into the Mediterranean Sea. The Nile has played a crucial role in the historical development of civilizations in the region, particularly ancient Egypt, where it provided water, transportation, and fertile silt for agriculture. The river's seasonal flooding was vital for sustaining crops, leading to a prosperous society along its banks for thousands of years.