20th century events in Utah and the world By yodawg2 1912 Alma Richards wins Olympic Gold Medal 1920 19th amendment gives vote back to Utah women 1929 Great Depression begins. 1941 Pearl Harbor attacked by Japanese May 8, 1945 Germany Surrenders. 1950 Korean War Starts. 1953 Korean War ends. 1963 JFK is assassinated. Jul 20, 1969 Neil Armstrong becomes the first man to set foot on the moon. 1982 Computer Software debuts in Utah. 1986 Space Shuttle Challenger explodes. 1991 The World Wide Web (www) debuts as a public service.