John Hinckley, who tried to kill President Reagan, was found not guilty on the grounds of insanity.
Source
Manchester Mark I computer became the first stored computer to run a program at a lab at Manchester University, UK.
Carl Nassib became the first openly-gay NFL player to play a regular-season game.
Two newly discovered moons orbiting Pluto were named Nix and Hydra.
J.K. Rowling published the 5th Harry Potter book 'The Order of the Phoenix.'
The US Navy claimed the island of Guam, which was previously under Spanish control.
