Palermo, Sicily was liberated by US forces.
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A deadly 106°F heatwave in Japan killed at least 65 people, and more than 22,000 were hospitalized.
American sci-fi horror movie 'Plan 9 From Outer Space' premiered.
Marvel's 'Avengers: Endgame' became the most financially successful movie of all time.
Emperor Gia Long unified Vietnam by conquering Hanoi.
300,000 Jews from a ghetto in Warsaw were deported and executed by Nazi rule.
