Return to Daily IQ 1945Auschwitz liberatedThe Russians liberated Auschwitz concentration camp, where the Nazis had killed over 1.5 million people, including over 1 million Jews. 1880 Thomas Edison was granted a patent for his incandescent light. 1944 The Soviets announced the end of the two-year siege of Leningrad. 1951 The U.S. Air Force started atomic testing in the Nevada desert. 1967 The Apollo I fire killed astronauts Grissom, White, and Chaffee during a simulated launch at Cape Canaveral. 1973 Vietnam War peace accords were signed in Paris. Yesterday Return to Daily IQ Tomorrow or choose another day: JanFebMarAprMayJunJulAugSepOctNovDec Today's Birthday or select month and date: JanFebMarAprMayJunJulAugSepOctNovDec Year by Year: 1900?2014 or enter a year: Enter a year: ?