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The Louisiana Territory spread over 15 present-day U.S. states and two Canadian provinces.[/caption]
In the year 1803, the Swiss Confederation replaces the Helvetic Republic (Feb 19), the Louisiana purchase, involving much more than just Louisiana, is made from France by the United States with $15 million (Apr 30), the Napoleonic Wars between France and the United Kingdom begin (May 18), the first public railway line in England, the wagonway, is opened (Jul 26), major breakthroughs in chemistry occur - and all these fine people were born:
1803-0106 Henri Herz* pianist/composer - Vienna, Austria (1888/84) 1803-0119 Sarah Helen Whitman* poet/transcendentalist/romantic interest of Edgar Allan Poe - Providence, RI USA (1878/75) 1803-0223 John Sutter* German-American/established Sutter’s Fort that would eventually become Sacramento/to U.S. at age 31 - Kandern, Baden, Holy Roman Empire (1880/77) 1803-0304 Nikolay Yazykov* poet - Simbirsk, Russian Empire (1846/43) 1803-0407 Flora Tristan* socialist writer/activist - Bordeaux, France (1844/41) 1803-0512 Justus von Liebig* pioneering chemist/inventor of mirror - Darmstadt, Holy Roman Empire (1873/69) 1803-0515 1803-0520 Ann Walker* landowner/wife of Anne Lister - Lightcliffe, West Riding of Yorkshire, England (1854/50) 1803-0525 Edward Bulwer-Lytton* writer/politician/coined the phrase The pen is mightier than the sword - London, England (1873/69) 1803-0525 Ralph Waldo Emerson* philosopher/essayist - Boston, MA USA (1882/78) 1803-0608 Amalia Assur* first female dentist in Sweden - Stockholm, Sweden (1889/86) 1803-0630 Ernst Lohrmann* German-Finnish architect - Übelgonne, Duchy of Westphalia (1870/66) 1803-0708 Julius Mosen* poet/author - Marieney, Vogtland, Saxon (1867/64) 1803-0731 John Ericsson* Swedish-American mechanical engineer/ innovator - Långbanshyttan,Värmland, Sweden (1889/85) 1803-0803 Mary Dominis* (b Jones) settler of Kingdom of Hawaii/mother-in-law of future Queen Liliʻuokalani - Boston, MA USA (1889/85) 1803-0803 Joseph Paxton* gardener (Cavendish banana)/architect (the Crystal Palace)/engineer/MP - Milton Bryan, Bedfordshire, England (1865/61) 1803-0813 Vladimir Odoyevsky* philosopher/music critic/philanthropist - Moscow, Russian Empire (1869/65) 1803-0823 Jan Erazim Vocel* Czech poet/archaeologist/cultural revivalist - Kutna Hora, Habsburg Monarchy (1871/68) 1803-0827 Edward Beecher* theologian/brother of Harriet Beecher Stowe - East Hampton, NY USA (1895/91) 1803-0928 Prosper Mérimée* writer/ archaeologist/historian - Paris, France (1870/66) 1803-0929 Mercator Cooper* ship captain (to Edo) - Southampton, NY USA (1872/ca) 1803-1005 Friedrich Bernhard Westphal* German-Danish painter/ illustrator - Schleswig, Denmark (1844/41) 1803-1006 Heinrich Wilhelm Dove* physicist/meteorologist - Liegnitz, Kingdom of Prussia, Holy Roman Empire (1879/75) 1803-1016 Robert Stephenson* civil engineer/designer of locomotives - Willington Quay, Northumberland, England (1859/55) 1803-1017 William Smith O’Brien* (Liam Mac Gabhann Ó Briain) Irish nationalist/MP/leader of the Young Ireland movement - Newmarket on Fergus, County Clare, Ireland (1864/60) 1803-1104 Sarah Hall Boardman* missionary (in Burma)/ writer - Alstead, NH USA (1845/41) 1803-1110 1803-1129 Gottfried Semper* architect/art critic - Hamburg, Germany (1879/75) 1803-1211 Hector Berlioz* composer/conductor - Isère, Lyon France (1869/65) 1803-1226 Friedrich Reinhold Kreutzwald* writer/author of the Estonian national epic Kalevipoeg - Jõepere, Estonia, Russian Empire (1882/78) 1803-0 1803-0 1803-0 Updated 2025-0324 Helsinki Search for another year here