1866 – President Andrew Johnson formally declares US Civil War over.
1896 – Dial telephone patented.
1912 – Plant Quarantine Act goes into effect.
1925 – WJR-AM in Detroit, Michigan begins radio transmissions.
1929 – 1st airship flight around Earth flying eastward completed.
1940 – Louis Buchalter is indicted on murder charges in Los Angeles for the killing of Harry Greenberg, a mob associate of casino owner Meyer Lansky and mobster Bugsy Siegel.
1942 – Dim-out regulations implemented in San Francisco.
1948 – US expels Soviet Consul General in New York, Jacob Lomakin.
1964 – US President Lyndon B. Johnson signs the Economic Opportunity Act, an anti-poverty measure totaling nearly $1 billion.
1971 – FBI covert investigation of journalist Daniel Schorr.
1974 – Nelson Rockefeller is selected as US Vice President by President Gerald Ford.
1975 – Viking 1 launched to orbit around Mars, soft landing.
1978 – Mark Vinchesi of Amherst, Mass. keeps a Frisbee aloft 15.2 seconds.
1980 – Pittsburgh Pirates Omar Moreno steals record 70 bases for 3rd consecutive season.
1985 – NY Met Dwight Gooden strikes out 16 on way to his 13th consecutive win.
1986 – Postal worker Patrick Sherrill shot 14 fellow workers dead in Edmond, Oklahoma.
1989 – Janet B. Evans swims female world record 800m freestyle (8:16.22)
1993 – Oslo Peace Accords signed, after secret negotiations in Norway, followed by a public ceremony in Washington, D.C. the following month.
1998 – U.S. embassy bombings: US military launches cruise missile attacks against alleged al-Qaida camps in Afghanistan and a suspected chemical plant in Sudan in retaliation for August 7 bombing of American embassies in Kenya and Tanzania.
2015 – 30 students at West Point Military Academy are injured in a mass pillow fight.
2018 – Colorado man Christopher Lee Watts is charged with the murder of his wife and two daughters.