Why was the mississippi river important to americans who moved west after the revolution ?

After the American Revolution, a flood of people crossed the mountains into the fertile lands between the Appalachians and the Mississippi River.

- Encyclopedia Britanica

nuclear fission produces the atomic bomb, a weapon of mass destruction that uses power released by the splitting of atomic nuclei the fighting in iwo jima and okinawa affected the allies' pacific strategy because truman decided to drop the atomic bomb on mainland japan.