In colonial times why did people build large cities near the nile river?

The cities of Ancient Egypt developed along the Nile River due to the fertile farmland along its banks. ... For example, there were political towns that housed government workers and officials such as the capital cities of Memphis and Thebes. Other towns were religious towns centered around a major temple.

Explanation:

its main object was the establishment of "settlement houses" in poor urban areas, in which volunteer middle-class "settlement workers" would live, hoping to share knowledge and culture with, and alleviate the poverty of, their low-income neighbors.