Sumerians lived near two rivers: The Tigris and the Euphrates. The rivers were vital to their agriculture system as they depending on the flooding of the rivers for silt, which was a fertilizer for their crops. They ended up building dams and canals and just had a very complex irrigation system in general. This allowed them to grow abundant amounts of wheat and barley. The Egyptians worshipped the Nile, a river that they considered a god as it provided them with food by watering plants, which allowed trade and prosperity. Similarly, they built irrigation systems and canals in order to actually obtain the water, and they also harnessed the silt in order to help with the process of their agriculture. So far, it’s clear that civilizations typically
