1905 – 127 degrees, Parker, Arizona (state record until 1994)
1912 – American athlete Jim Thorpe wins 4 of 5 events to win the Pentathlon gold medal at the Stockholm Olympics, medal stripped 1913 (played pro baseball), reinstated 1982.
1923 – University of Delaware invents “junior year abroad” (at Sorbonne)
1928 – Sliced bread sold for the first time by the Chillicothe Baking Company, Missouri, using a machine invented by Otto Frederick Rohwedder. Described as the greatest forward step in the baking industry since bread was wrapped.
1926 – American businessman Henry F. Phillips receives patents for a new “cross-recessed” screw, and the new screwdriver needed to make it work.
1941 – US forces land in Iceland to forestall Nazi invasion.
1946 – Mother Frances Xavier Cabrini, Catholic nun (Missionary of the Sacred Heart of Jesus,) canonized as 1st American saint.
1948 – 6 female reservists become 1st women sworn into regular US Navy.
1948 – Cleveland Indians stun Major League Baseball by signing 42-year-old veteran Negro Leagues pitcher Satchel Paige.
1958 – President Dwight Eisenhower signed a bill approving Alaskan statehood.
1960 – USSR shoots down a US aircraft over Barents Sea.
1972 – 1st women FBI members sworn in (Susan Lynn Roley & Joanne E. Pierce)
1978 – NBA approves franchise swap: Buffalo Braves owner John Y. Brown and Harry Mangurian acquire Boston Celtics, while the Celtics owner Irv Levin gets Braves, later moved to San Diego to become the Clippers.
1981 – Sandra Day O’Conner nominated for the Supreme Court, 1st female Supreme Court justice.
1987 – Kiwanis Clubs end men-only tradition, vote to admit women.
1987 – Lieutenant Colonel Oliver North begins public testimony at Iran-Contra hearing.
1996 – Space Shuttle STS 78 (Columbia 20), lands.
2001 – In his first appearance at Daytona since the death of his father Dale Earnhardt Sr., Dale Earnhardt Jr. wins Pepsi 400 coming from 7th with 9 laps remaining to beat teammate Michael Waltrip.
2016 – In Dallas, Texas, lone gunman shoots and kills five police officers, wounding others during a protest march against fatal police shootings of African Americans.
2017 – Tesla Motors produces its first mass-market car, the Model 3.