1903 The Wright brothers make the 1st sustained motorized aircraft flight at 10:35 AM, piloted by Orville Wright at Kitty Hawk, North Carolina.
1927 US submarine S-4 sinks after collision killing all 34 aboard.
1939 German pocket battleship Graf Spee scuttled by its crew off Uruguay.
1941 German submarine U-31 sunk.
1944 US destroyers sink in storm off Philippines, 790 killed.
1969 USAF closes Project Blue Book, concluding no evidence of extraterrestrial spaceships behind thousands of UFO sightings.
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