1804 – Former United States Secretary of the Treasury Alexander Hamilton dies after being shot in a pistol duel by Vice President Aaron Burr.
1843 – Mormon leader Joseph Smith says God allows polygamy.
1862 – US Congress authorizes Medal of Honor.
1882 – 1st ocean pier in US completed, Washington, D.C.
1909 – 16th Amendment was passed by congress (power to tax income)
1916 – Joseph Dunn (14) is attacked by a shark, suffering non-fatal wounds in New Jersey, the final episode in a spate of shark attacks along the Jersey coast where 4 people died over 12 days.
1933 – Congress passes 1st minimum wage law (33 cents per hour)
1940 – Frederick McKinley Jones receives a patent for an air conditioning unit for trucks, helping to change long-haul carriage of food and blood.
1948 – 1st jets to fly across Atlantic (6 RAF de Havilland Vampires)
1954 – President Eisenhower put forward a plan for an interstate highway system.
1957 – US Surgeon General Leroy Burney connects smoking with lung cancer.
1966 – US Treasury announces it will buy mutilated silver coins at silver bullion price at Philadelphia and Denver mints.
1972 – Democrats nominated George McGovern for US President in Miami, Florida.
1973 – A fire destroys the entire 6th floor of the National Personnel Records Center of the United States.
1974 – John Ehrlichman convicted of violating Daniel Ellsberg’s rights.
1984 – Geraldine Ferraro becomes 1st US female major party VP candidate.
1994 – Nomination hearings for Steven Breyer for supreme court justice begins.
2016 – Bernie Sanders endorses fellow Democratic Presidential candidate Hillary Clinton in a speech in New Hampshire.
2018 – US President Donald Trump arrives in the UK for a four-day visit amid protests.