300,000 Jews from a ghetto in Warsaw were deported and executed by Nazi rule.
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American sci-fi horror movie 'Plan 9 From Outer Space' premiered.
33-year-old Katharine Lee Bates wrote the famous song 'America the Beautiful.'
Marvel's 'Avengers: Endgame' became the most financially successful movie of all time.
Japan published the first print of the world's most popular manga-comic series, 'One Piece.'
Palermo, Sicily was liberated by US forces.