American pop singer Ariana Grande joined YouTube at 13 years old.
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The Power of Symphony by William Hill Brown became the first novel published in America.
American tennis player John McEnroe became the first player to be expelled from the Australian Open.
King of France, Louis XVI, faced gruesome guillotine execution for high treason.
The Mysterious Affair at Styles, by British crime writer Agatha Christie, was published in the UK.
The first Star Trek convention was held in New York City.
