A medical paper on smallpox was published in Boston, making it the first medical publication in American history.
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A meteorite that hit Australia 2.2 billion years ago was announced as Earth's oldest recognized meteorite impact structure.
The Flag of Quebec was adopted and flown for the first time over the National Assembly of Quebec.
King of France, Louis XVI, faced gruesome guillotine execution for high treason.
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.
