1898

U.S. troops invade Puerto Rico, armed resistance to the invasion continues for three years.

1963

President Kennedy and Soviet Premiere Kruschev sign the Nuclear Test Ban Treaty outlawing above-ground testing.

1972

The federal government concedes it used Blacks as guinea pigs for decades in syphilis experiments in Tuskegee, AL, the government deliberately infected many and followed the untreated advancement of the disease while telling patients they were being helped. No one is ever prosecuted for these crimes.

1973

President Nixon refuses to comply with subpoenas for White House tapes.

1988

Chilean university students occupy school buildings in protest of cutting of government aid to education, the budget cuts had come at the suggestion of the government's chief economic consultant, Milton Friedman.

1990

US Ambassador April Gillespie tells Saddam Hussein that the U.S. would not take sides in an Iraq-Kuwait dispute, Hussein takes this as U.S. approval of his invasion of Kuwait.