American tennis player John McEnroe became the first player to be expelled from the Australian Open.
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A medical paper on smallpox was published in Boston, making it the first medical publication in American history.
Li Na became the first Asian-born tennis player to be entered into the International Tennis Hall of Fame.
Over two million women worldwide marched against Trump's anti-women and offensive slews.
A meteorite that hit Australia 2.2 billion years ago was announced as Earth's oldest recognized meteorite impact structure.
Hundreds of thousands of Americans who evaded the Vietnam War were pardoned by President Jimmy Carter.
