1832 Source of Mississippi River discovered by American geographer Henry Schoolcraft
1835 Swedish-American inventor John Ericsson files for a patent for his screw propeller design.He also developed the first rotating turret on the USS Monitor, which ended up saving a blockade squadron during the American Civil War.
1836 US Patent #1 is granted for locomotive wheels after 9,957 unnumbered patents
1863 New York City Draft Riot: Anti-draft protests turn violent, over 100 killed, including lynching of Blacks, 2,000 injured and 50 buildings burned; riots last for 3 days
1865 Horace Greeley, founder and editor of the "New-York Tribune," advises his readers to "Go west, young man"
1868 Oscar J Dunn, former slave, installed as Lieutenant Governor of Louisiana
1882 Johnny Ringo, American Gunfighter dies(b. 1850)
1890 John C. Frémont, American army officer, explorer of the American West and presidential candidate, dies at 77
1896 Philadelphia outfielder Ed Delahanty becomes second major leaguer to hit 4 HRs in a game as Phillies lose 9-8 to Chicago Colts at the West Side Grounds, Chicago
1917 Vision of the Virgin Mary appears to children of Fátima, Portugal
1923 The Hollywood Sign is officially dedicated in the hills above Hollywood, Los Angeles. It originally reads "Hollywoodland," but the last four letters are dropped after renovation in 1949.
1930 David Sarnoff reports in the NY Times, "TV will be a theater in every home"
1934 Babe Ruth hits 700th career home run against Detroit
1936 112°F (44°C), Mio, Michigan (state record)
1936 114°F (46°C), Wisconsin Dells, Wisconsin (state record)
1943 Kurt Huber, German college professor and member of anti-Nazi resistance group Weisse Rose (White Rose), executed by guillotine at 50
1949 Pope Pius XII excommunicates communist catholics
1954 Dean Stone gets credit for AL win, although he didn't retire a batter, he threw out Shoendienst trying to steal home, AL-11 NL-9
1956 RCA releases Elvis Presley's single "Hound Dog", a cover of Big Mama Thorton's original
1960 US Democratic convention nominates JFK as presidential candidate
1976 Joachim Peiper, German military leader (SS, by assassination; b. 1915)
1978 Ford Motor Company chairman Henry Ford II fires company president Lee Iacocca
1999 Pedro Martínez strikes out the first four batters in the All-Star Game at Fenway Park, earning All-Star Game MVP
2008 Brewing company InBev announces deal to buy American brewer Anheuser-Busch for almost $52 billion.(FF's stock split)
2010 American businessman and MLB team owner (New York Yankees), dies from a heart attack at 80