A medical paper on smallpox was published in Boston, making it the first medical publication in American history.
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The Flag of Quebec was adopted and flown for the first time over the National Assembly of Quebec.
New York City passed a law prohibiting women from smoking in public places.
The iconic DeLorean sports car began production in Northern Ireland.
Over two million women worldwide marched against Trump's anti-women and offensive slews.
The Mysterious Affair at Styles, by British crime writer Agatha Christie, was published in the UK.
