Columbia Records introduces the 33 1/3 LP (“long playing”) record at New York's Waldorf-Astoria Hotel[?], featuring 25 minutes of music per side, compared to the four minutes per side of the 78 rpm record, the previous standard.
... Manchuria followed by 100,000 Japanese troops.
April 30 - Louisiana Purchase Exposition World's Fair opens in Saint Louis, Missouri (closes December 1)
November - ...