Rivers have continuously vie a dominant role in history. several civilizations are engineered on nice rivers. Ancient Egypt developed on the river, geographic region unfold on the Euphrates River and river region. The Indus vale is among the oldest civilizations in history.
Rivers gave humans farmland to grow crops likewise as a route to travel and trade their product with others. As time went on some rivers were changed into necessary waterways and wont to transport product to the inner elements of a continent. The St. Lawrence trade route, as an example, finished in 1959, connects the St. Lawrence stream with the good Lakes of North America, creating it doable for wares ships to travel as so much as Chicago. A series of locks and canals helps rivers overcome variations in water level.
Small cities have mature into huge cities as a result of they're located on rivers: Paris on the Seine, London on the Themes, St. Louis on the Mississippi are solely many examples.
Humans have learned to use the ability that moving water creates. Dams on rivers generate an out-sized a part of the electricity utilized in some countries. Engineers have regulated several rivers so as to prevent flooding and forestall a river’s bed from cutting too deep into the soil.