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Ice cream cone debuts at St. Louis World's Fair. /events/ice-cream-cone-createdLink Preview
Louisiana Purchase Treaty signed in Paris, expanding the USA.
Louisiana admitted as the 18th US state.
First practical typewriter completed by Pellegrini Turri.
New York introduces the first hunting license fee.
FDR first US President on TV at 1939 New York World's Fair opening.
First Great Lakes submarine, Peto, launched in Wisconsin.
Hitler commits suicide as Red Army captures Berlin.
Boulder Dam renamed for Herbert Hoover.
Mr Potato Head becomes 1st toy advertised on TV.
Ostankino Tower completed, the world's then highest structure.
CERN announces World Wide Web protocols will be free.
David Blaine sets record for holding breath underwater on Oprah.
World's oldest known spider dies in Australia, aged 43.
Bach Long Bridge, world's longest glass-bottom bridge, opens in Vietnam.
George Washington inaugurated as first U.S. President.
Hawaii organized as a U.S. territory.
Lou Gehrig plays his last game with the New York Yankees.