The first Walmart store opened in Rogers, Arkansas.
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During a thunderstorm in Charleston, South Carolina, the National Weather Service reported an alligator falling from the sky.
Martin Luther was almost struck by lightning and became a monk.
Charles J. Guiteau shot US President James A. Garfield in Washington, D.C.
Inventor Benjamin J. Lane patented the first self-contained gas mask.
The International Astronomical Union named Pluto's fourth and fifth moons Kerberos and Styx.