Concept

February 20

Summary
1339 – The Milanese army and the St. George's (San Giorgio) Mercenaries of Lodrisio Visconti clash in the Battle of Parabiago; Visconti is defeated. 1472 – Orkney and Shetland are pawned by Norway to Scotland in lieu of a dowry for Margaret of Denmark. 1521 – Juan Ponce de León sets out from Spain for Florida with about 200 prospective colonists. 1547 – Edward VI of England is crowned King of England at Westminster Abbey. 1685 – René-Robert Cavelier establishes Fort St. Louis at Matagorda Bay thus forming the basis for France's claim to Texas. 1792 – The Postal Service Act, establishing the United States Post Office Department, is signed by United States President George Washington. 1798 – Louis-Alexandre Berthier removes Pope Pius VI from power. 1813 – Manuel Belgrano defeats the royalist army of Pío de Tristán during the Battle of Salta. 1816 – Rossini's opera The Barber of Seville premieres at the Teatro Argentina in Rome. 1835 – The 1835 Concepción earthquake destroys Concepción, Chile. 1846 – Polish insurgents lead an uprising in Kraków to incite a fight for national independence. 1864 – American Civil War: Battle of Olustee: The largest battle fought in Florida during the war. 1865 – End of the Uruguayan War, with a peace agreement between President Tomás Villalba and rebel leader Venancio Flores, setting the scene for the destructive War of the Triple Alliance. 1872 – The Metropolitan Museum of Art opens in New York City. 1877 – Tchaikovsky's ballet Swan Lake receives its premiere at the Bolshoi Theatre in Moscow. 1901 – The legislature of Hawaii Territory convenes for the first time. 1905 – The U.S. Supreme Court upholds the constitutionality of Massachusetts's mandatory smallpox vaccination program in Jacobson v. Massachusetts. 1909 – Publication of the Futurist Manifesto in the French journal Le Figaro. 1913 – King O'Malley drives in the first survey peg to mark commencement of work on the construction of Canberra. 1920 – An earthquake kills between 114 and 130 in Georgia and heavily damages the town of Gori.
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