American tennis player John McEnroe became the first player to be expelled from the Australian Open.
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A meteorite that hit Australia 2.2 billion years ago was announced as Earth's oldest recognized meteorite impact structure.
Over two million women worldwide marched against Trump's anti-women and offensive slews.
The Power of Symphony by William Hill Brown became the first novel published in America.
The Mysterious Affair at Styles, by British crime writer Agatha Christie, was published in the UK.
Li Na became the first Asian-born tennis player to be entered into the International Tennis Hall of Fame.
