The Russians liberated Auschwitz concentration camp, where the Nazis had killed over 1.5 million people, including over 1 million Jews.
Thomas Edison was granted a patent for his incandescent light.
The Soviets announced the end of the two-year siege of Leningrad.
The U.S. Air Force started atomic testing in the Nevada desert.
The Apollo I fire killed astronauts Grissom, White, and Chaffee during a simulated launch at Cape Canaveral.
Vietnam War peace accords were signed in Paris.
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