Fidel Castro banned elections and declared Cuba to be a socialist nation.
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SpongeBob SquarePants premiered on Nickelodeon.
Geoffrey Hinton, the 'Godfather of AI,' resigned from Google amidst growing concerns over AI.
Amtrak began operating as the United States' passenger railroad company.
Same-sex marriage was legalized in Sweden.
Mr. Potato Head was officially released, originally only consisting of the accessories which were stuck in an actual potato.