unit 10 timeline By reco 1940 Kent State University shooting The Kent State shootings, also known as the May 4 massacre and the Kent State massacre 1970 Watergate Scandal, which leads to Nixon’s Resignation 1978 camp david records 1979 three mile island disaster 1979 Iran Hostage Crisis 1981 Iran Hostage Crisis 1985 Iran Contra Affair 1987 Iran Contra Affair