Christopher Columbus set out looking to find a western sea route to China and India.
The cold war was foretold by Churchill following the 2nd World War. He tried to tell the world of the Soviet threat. "Red" is slang for a communist. Although it is not illegal to be a communist in The United States, the "Red Scare" was very prevalent in the 1950's due to Senator McCarthy.
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The Great Depression, it wasn't that great though.
Southerners feared the revolts; they separated families and broke tight bonds. Throughout the South, fear was put to a place where the slaves outnumbered the free people. A revolt would destroy the economy, (reliant on slave labor), and had a high chance of resulting in violence.
Answer: A blockade set by the soviet union to separate west side of Berlin and the east side of Berlin.
Explanation: