What is the longest river in the world?

The Nile River has often been recognized as the longest river in the world, traditionally measured to be about 6,650 kilometers (4,130 miles) in length. It flows through several countries, including Uganda, Sudan, and Egypt, before draining into the Mediterranean Sea. The river has played a vital role in the development of ancient civilizations along its banks, particularly in Egypt, and continues to be significant for agriculture, transportation, and tourism.

While some measurements and recent studies suggest that the Amazon River might exceed the Nile in length when considering its tributaries and the complexity of its geography, the Nile still holds the title in conventional records. The confusion between these two rivers has been a topic of debate, but for many years, the Nile has been officially recognized in various contexts as the longest river. This distinction is why it is commonly presented as the correct answer to questions about the longest river in the world.