what was the nile river used for?

When the Nile flooded each year, it deposited rich soil for growing crops.

The water from the Nile was used to irrigate crops.

The river was used for transportation.

The river was used for bathing and laundry.

Although the Nile doesn't flood any more because of the Aswan Dam, I saw people washing clothes in the Nile in 1978. They still also use water wheels to bring water up for crop irrigation.