What is the Red Scare?
What world history event helped to create the hysteria?

The red scare was a period in U.S history when people feared communism, and wished for the containment of it. This led to mass paranoia in the states. The rise of communism in nations like the soviet union led to this surge in fear, as Americans feared that nations that practiced communism. The rise of the soviet union and other events like the russian revolution in 1920 are examples of events that spread hysteria

Explanation:

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The Red Scare was hysteria over the perceived threat posed by ... agents helped build the case against Julius Rosenberg (1918-53) and his wife, ... Public concerns about communism were heightened by international events.

Explanation:

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