The American Civil War begins, FDR dies, a Soviet cosmonaut becomes the first human to travel into space, and the first space shuttle lifts off, all on this day.
2011: Japan ranks its nuclear crisis at the Fukushima Daiichi nuclear plant at the highest possible severity on an international scale -- the same level as the 1986 Chernobyl disaster -- even as it insisted radiation leaks were declining at its tsunami-crippled nuclear plant.
Amanda Valdes photo
Joe Buttitta photo
Oscar Flores photo
Giuseppe Bellini/Getty Images
iStock / crisserbug
Courtesy USA Swimming
Frazer Harrison/Getty Images
Darren McCollester/Getty Images
National Park Service
Joe Raedle/Getty Images
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