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| Birthday  July 20, 1304   Petrarch, in Italy, poet | 
| Birthday  July 20, 1785   Mahmud II, Ottoman sultan, Westernizer, reformer. | 
| Birthday  July 20, 1864   Erik Karlfeldt, Swedish poet (Nobel 1918-refused; 1931-posthumous). | 
| Birthday  July 20, 1890   Theda Bara, Actress (Under Two Flags, Cleopatra). (or 0729) | 
| Birthday  July 20, 1919   Sir Edmund Hillary born | 
| Birthday  July 20, 1919   Sir Edmund Hillary, one of 1st two men to scale Mt. Everest. | 
| Birthday  July 20, 1920   Elliot L. Richardson, former US attorney general. | 
| Birthday  July 20, 1924   Lola Albright, Actress. | 
| Birthday  July 20, 1930   Sally Ann Howes, in London England | 
| Birthday  July 20, 1933   Nelson Doubleday, Publisher | 
| Birthday  July 20, 1933   Acclaimed author Cormac McCarthy is born | 
| Birthday  July 20, 1938   Diana Rigg, in Doncaster Engl, (Mrs. Peele in The Avengers). | 
| Birthday  July 20, 1938   Natalie Wood, Actress in SF | 
| Birthday  July 20, 1938   JoAnn Campbell, in Fla - Lawrence Welk's champagne lady | 
| Birthday  July 20, 1941   Vladimir A. Lyakhov, Soviet cosmonaut (Soyuz 32, T-9). | 
| Birthday  July 20, 1944   T. J. Shephard, Country singer | 
| Birthday  July 20, 1946   Kim Carnes | 
| Birthday  July 20, 1947   Carlos Santana, musician. | 
| Birthday  July 20, 1957   Donna Dixon | 
| Birthday  July 20, 1970   1st baby born on Alcatraz Island | 
| History  July 20, 1780   Mad Anthony Wayne loses to Loyalists in New Jersey | 
| History  July 20, 1810   Columbia gains independence | 
| History  July 20, 1859   Admission fee 1st charged to see a baseball game (50›) | 
| History  July 20, 1864   Confederates attack at the Battle of Peachtree Creek | 
| History  July 20, 1871   British Columbia becomes 6th Canadian province. | 
| History  July 20, 1878   1st telephone introduced in Hawaii. | 
| History  July 20, 1881   Sitting Bull surrenders | 
| History  July 20, 1889   Homesteaders murdered by Wyoming ranchers | 
| History  July 20, 1914   Caillaux trial begins in Paris | 
| History  July 20, 1923   Yanks hit into a triple play but beat A's 9-2 | 
| History  July 20, 1941   Yanks beat Tigers 12-6 in 17 | 
| History  July 20, 1944   Assassination plot against Hitler fails | 
| History  July 20, 1944   US invaded Japanese-occupied Guam in WWII | 
| History  July 20, 1948   Truman issues peacetime draft | 
| History  July 20, 1949   Israel's 19 month war of independence ends | 
| History  July 20, 1951   King of Jordan assassinated | 
| History  July 20, 1956   Yankee pitcher Whitey Ford ties AL record of 6 straight strike outs | 
| History  July 20, 1960   1st submerged submarine to fire Polaris missile (George Washington) | 
| History  July 20, 1960   USSR recovered 2 dogs; 1st living organisms to return from space. | 
| History  July 20, 1963   Jan and Dean's Surf City hits #1 | 
| History  July 20, 1964   Viet Cong troops overrun town | 
| History  July 20, 1969   1st men on the Moon Neil Armstrong & Edwin Aldrin Apollo 11 | 
| History  July 20, 1969   Nixon watches first lunar landing | 
| History  July 20, 1969   Duck Hook plan completed | 
| History  July 20, 1972   U.S. government study disputes Nader's charges against Corvair | 
| History  July 20, 1973   Bruce Lee dies at age 32 | 
| History  July 20, 1976   US Viking 1 lands on Mars at Chryse Planitia 1st Martian landing. | 
| History  July 20, 1976   Viking 1 lands on Mars | 
| History  July 20, 1977   Second great flood hits Johnstown | 
| History  July 20, 1977   Voyager 2 launched. | 
| History  July 20, 1984   Uwe Hohn of E Germany throws javelin a record 104.80 m. | 
| History  July 20, 1984   A serial-killing couple is apprehended | 
| History  July 20, 1987   Don Mattingly ties major league fielding record with 22 put outs | 
| History  July 20, 2012   12 people killed, 70 wounded in Colorado movie theater shooting |