Canals, Reservoirs, Dams
(I’m not 100% sure, but though they used flooding to their advantage it wasn’t a form of water control)
Answer:
A Jim Beckwourth
Explanation:
Beckwourth Pass, which runs through the Sierra Nevada Mountains in Beckwourth, California, was discovered by Jim Beckwourth, a former Virginia slave, moved to Colorado and became businessman
In 1787, George Washington was persuaded to attend the Constitutional Convention and subsequently was unanimously elected its president.