What events during the Cold War had the biggest impact on the United States? You may discuss political, scientific or social events. Consider:
The Atomic Age
The Arms Race
The Space Race
Conflicts like the Bay of Pigs, Cuban Missile Crisis, Korea or Vietnam
Spread of Communism
The Red Scare

I would say the downfall of the ussr this led to the end of the coldwar and made America a supper power in the world since the USSR was no more

Explanation:

states began imposing duties on each other's goods. congress had no way to raise money for an army to expel them.

the noble might have thought that the system was far because they had lot of things and riches and the serf would have thought that the feudal system was un fair because of the way they were treated.