Article III of the U.S. Constitution gives Congress the power to "<span>establish lower courts" since the Founders knew that there would need to be multiple levels of justice in the US at the state level. </span>
Because their waters provided places to hunt and fish. Also, as the rivers flooded, the lands around them became fertile. This allowed them to support farming. This is especially true of the Nile River, which flooded the same time each year.
