On this day in 1957, an explosion in a Soviet plutonium-processing plant created fallout that contaminated thousands of square miles around the disaster site.
This Day in History Class
1,923 clip(s)
Flashback episode - May 24th
Sergeant William Carney is awarded the Medal of Honor - May 23rd, 1900
Abraham Ortelius publishes the first world atlas - May 22nd, 1570