time is under French military occupation. November 26 – The Pontcysyllte Aqueduct is opened in Wales; it is long and tall. December 2 – Napoleonic Wars: Battle of Austerlitz – French troops under Napoleon decisively defeat a joint Russo-Austrian force. December 26 – The Peace of Pressburg between France and Austria is signed in the Primate's Palace, Pressburg (modern-day Bratislava). December 31 – The French Republican Calendar (which featured a 10-day week until 1802) is used for the last time, 8 days after being annulled by Napoleon, with the final official date being "9 Nivôse in Year XIV of the Revolution". Date unknown James Squire becomes the first brewer in Australia to cultivate hops. The Old Man of the Mountain, a natural rock formation in the U.S. state of New Hampshire, is first mentioned by two workmen, Francis Whitcomb and Luke Brooks. Napoleon orders his soldiers to be vaccinated. Births January–June January 8 – Orson Hyde, American religious leader (d. 1878) January 27 – Samuel Palmer, English artist (d. 1881) February 13 – Peter Gustav Lejeune Dirichlet, German mathematician (d. 1859) February 18 – Louis M. Goldsborough, United States Navy admiral (d. 1877) March 3 – Jonas Furrer, first President of the Swiss Confederation (d. 1861) March 14 – Eduard Clam-Gallas, Austrian general (d. 1891) March 22 – Benito de Soto, Galician pirate (executed 1830) March 23 – Sears Cook Walker, American mathematician, astronomer (d. 1853) March 26 (alleged) – Shirali Muslimov, Azerbaijani supercentenarian (d. 1973) April 2 – Hans Christian Andersen, Danish writer (d. 1875) April 8 – Hugo von Mohl, German botanist (d. 1872) April 21 – James Martineau, English religious philosopher (d. 1900) April 22 – Benito de Soto, Galician pirate (d. 1830) June 9 – José Trinidad Cabañas, Honduran general, president and national hero (d. 1871) June 22 – Giuseppe Mazzini Italian patriot, statesman and writer (d. 1872) July–December July 5 – Robert FitzRoy, English meteorologist, captain and politician (d. 1865) July 29 – Alexis de Tocqueville, French historian (d. 1859) July 30 – Rudolf Wagner, German anatomist, pathologist (d. 1864) August 4 – William Rowan Hamilton, Irish physicist (d. 1865) September 19 – John Stevens Cabot Abbott, American historian, pastor and pedagogical writer (d. 1877) September 27 – George Müller, Prussian evangelist, founder of the New Orphan Houses, Ashley Down, Bristol in England (d. 1898) November 14 – Fanny Mendelssohn, German composer, pianist (d. 1847)