The Erie Canal opens, the Pony Express closes, Wyatt Earp shoots it out in Tombstone, "Baby Fae" gets a baboon heart, and the Patriot Act is signed into law, all on this day.
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Library of Congress
1774: The first Continental Congress adjourns in Philadelphia, but agrees to reconvene in May 1775 if the British Parliament does not address their grievances over mounting taxation without representation and the British blockade of Boston Harbor following the Boston Tea Party.