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3.What were the causes that led to the start of McCarthyism? I​

User HHest
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Answer:

Many factors contributed to McCarthyism, some of them with roots in the First Red Scare (1917–20)

Step-by-step explanation:

It started after the Wheeling Speech on February 9, 1950. A threat of communism in the US during the cold war.

User Phung
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