1938: Foundation of House UnAmerican Activities Committee (HUAC)
HUAC investigated the expansion of un-American propaganda activities in the United States.
1945 and on: World War 2 and the growth of disloyalty to the Soviet Union
1945: China became the Communists
Late 1940s: The beginning of regarding The Communist Party of America as a threat to U.S. national security
The connection between the Communist Party and Soviet Union threaten American with rumors that Communist would take over America for loyalty to Moscow, a capital of Russia.
1947: Truman's excluding Communists in government
Foreign-born Communists were expelled by the Department of Justice, and hundreds of leaders of Communist party were sentenced by the Smith Act, a law that forbids propagation of subversive doctrine.
Public hearings to inspect the effect on communism in Hollywood
Since one of ex-member of the Communist Party testifies about communists in film industry, HUAC started public hearing to examine them, and thousand of people in Hollywood lost their jobs.
1949: Anti-communist loyalty oath movement
People who denied signing were fired. This movement spread all over the country.
1948-1950: Threatened people's civil rights
1950: McCarthy's announcement
Joseph McCarthy, U.S. senator, declared about a list 205 communists in the State Department. However, this statement was never proven and the number of communists changed every time the statements appeared. McCarthy earned a lot of supports from public.
1950-1954: Investigation various Government departments including U.S. Army
Because of McCarthy's attack on his own party, many Republicans became annoyed at him.
1954: Loss of approval from Republicans
April 22-June17, 1954, McCarthy carried out televised 36-day hearings. However, the hearings made republicans look ridiculous. As a result he started losing his power.
1954: The end of McCarthyism
December 2, 1954, Joseph McCarthy was censured by a vote of 67 to 22.
1957: Joseph McCarthy died of hepatitis at age of 47.