Meat packers began the first modern sit-down strike at the Hormel plant in Austin, Minnesota.
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French engineer Paul Cornu flew his first helicopter in Normandy.
Disney's animated feature 'Fantasia' was released to movie theaters in the US.
Same-sex marriage was legalized in Hawaii.
NBC assembled the first symphony utilized exclusively for radio.
The Cherry Mine disaster in Illinois killed 259 miners in a coal mine fire.
