The large branch of the Nile River that flows through Egypt is known as the River Nile or the Nile River itself. The Nile is one of the longest rivers in the world and has played a vital role in the development of Egyptian civilization. Its waters provided irrigation for agriculture, enabling the flourishing of ancient Egyptian society. The river splits into two main branches in its delta, the Rosetta and Damietta, before reaching the Mediterranean Sea. The Nile is often heralded as the lifeblood of Egypt, supporting its ecosystem and economy.