Hawaii recorded its hottest day ever at 100°F.
Source
Britain implemented a Tea Act against its American colonies.
NASA launched the Explorer 11 satellite atop a Juno II rocket from Cape Canaveral, Florida.
John Hinckley Jr., President Reagan's failed assassin, pleaded 'not guilty' due to not being mentally sound at trial.
A fireball was spotted over southern Mississippi.
King Edward I of England fought the Scots to punish King John Balliol for not being an ally against France with England.