The United States and the Soviet Union came to the brink of nuclear war in 1962 over Soviet missile bases in Cuba. This was referred to as the "Cuban Missile Crisis". The US was mostly concerned about the very close proximity of the missiles to its shores.
Answer:
soooo a major reform movement that won widespread support was the effort to make education available to more children. The man who led this movement was horace mann, "the father of American public schools."
Explanation:
The spread of Communism in China and the Soviet Union successfully testing a nuclear bomb.