Uncle Tom's Cabin was a novel written by Harriet Beecher Stowe about slavery in the south. When people read it, they started to realize and be informed about what slavery was like, so more people started being opposed to slavery (because before this, people in the north tended to not care) and more people became abolitionists.
I'm pretty sure it was the Spanish Armada
:)
Answer:
The answer is the US and the Soviet Union.
Explanation:
After World War II, The US and the Soviet Union had engaged in the Cold War for years after WWII.