Respuesta :
Many factors contributed to McCarthyism, some of them with roots in the First Red Scare (1917–20), inspired by communism's emergence as a recognized political force and widespread social disruption in the United States related to unionizing and anarchist activities.
Explanation:
McCarthyism is the term describing a period of intense anti-Communist suspicion in the United States which began during the start of the Cold War, that lasted roughly from the late 1940s to the mid to late 1950s.