On this day in 1908, an explosion occurred near the Podkamennaya Tunguska River in Russia that was likely caused by a meteorite or comet bursting.
This Day in History Class
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California enacts the Alien Land Law - May 3rd, 1913
The "Battle of Alcatraz" begins - May 2nd, 1946
The world's first postage stamp is issued - May 1st, 1840