American pop singer Ariana Grande joined YouTube at 13 years old.
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The Mysterious Affair at Styles, by British crime writer Agatha Christie, was published in the UK.
The Power of Symphony by William Hill Brown became the first novel published in America.
A medical paper on smallpox was published in Boston, making it the first medical publication in American history.
Over two million women worldwide marched against Trump's anti-women and offensive slews.
American tennis player John McEnroe became the first player to be expelled from the Australian Open.
