1907 – U.S. Army Signal Corps established a small Aeronautical Division.
1911 – Harriet Quimby passes her pilot’s test and becomes the 1st US woman to earn an Aero Club of America aviator’s certificate.
1918 – Pittsburgh and Boston Braves play a Major League Baseball record 20 scoreless innings before Pirates win, 2-0 in 21.
1927 – Earliest date for a film to be considered for the Academy Awards.
1936 – XI Summer Olympic Games were opened by Adolph Hitler in Berlin.
1942 – American Federation of Musicians labor union begins a strike over royalty payment disagreements, refusing to perform on commercial recordings, a ban that lasts over two years.
1945 – New York Giants outfielder Mel Ott hits historic 500th Major League Baseball home run off Boston Braves Johnny Hutchings, joins Babe Ruth & Jimmy Foxx as only players to reach the milestone.
1953 – Fidel Castro arrested in Cuba.
1957 – 1st commercial building heated by sun (Albuquerque, New Mexico)
1960 – Aretha Franklin’s 1st recording session for Columbia Records in New York City.
1963 – Beatles book is sold out on its 1st day of sale.
1970 – Future Hall of Fame outfielder Willie Stargell smacks 3 doubles and 2 homers in a 20-10 Pittsburgh Pirates win vs. Braves at Atlanta Stadium.
1975 – 35 countries (33 European nations, Canada, and the United States) sign the “Helsinki Final Act” agreement concerning boundary integrity, human rights, and economic co-operation.
1982 – After the first 13 runnings of the midsummer classic, Darryl Waltrip becomes the first driver to win the Talladega 500 twice.
1990 – “Cat on a Hot Tin Roof” closes at Eugene O’Neill Theater in New York City after 149 performances.
1999 – Canadian Open Women’s Golf (du Maurier Classic), Priddis Greens GC: Australian Karrie Webb wins by 2 from Laura Davies of England.
2007 – The I-35 West Mississippi River Bridge spanning the Mississippi River in Minneapolis, Minnesota, collapses during the evening rush hour.
2014 – United States and United Nations announce a 72-hour ceasefire between Israel and Palestine, though it quickly breaks down.
2020 – Egypt tells Elon Musk its pyramids were not built by aliens, after Musk tweets in support of a conspiracy theory that they did.
2021 – The United States passes the 35 million mark in COVID-19 cases with California becoming the first state to record 4 million cases.