McCarthyism Timeline By vcaiazzo Feb 9, 1950 Senator Joseph McCarthy announces he has a list of 205 communists in the US Department of State Period: Feb 9, 1950 to May 2, 1957 McCarthyism Timeline Apr 22, 1954 Senator McCarthy conducts televised hearings of those accused of communism Jun 17, 1954 Televised hearings come to a close Dec 2, 1954 Senate claims that McCarthy tended to bring them dishonor and disrepute May 2, 1957 McCarthy dies at age 47 of hepititas