Inventor Benjamin J. Lane patented the first self-contained gas mask.
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Inventor Thomas Savery patented the first steam engine in England.
During a thunderstorm in Charleston, South Carolina, the National Weather Service reported an alligator falling from the sky.
North and South Vietnam were formally reunified after more than twenty years of war.
The International Astronomical Union named Pluto's fourth and fifth moons Kerberos and Styx.
American aviator Amelia Earhart disappeared.
