Cholesterol is isolated. Carl Friedrich Gauss pioneers the field of summation with the formula summing at the age of 7. Madame du Coudray, pioneer of modern midwifery, retires. Births January 17 – Philippe Antoine d’Ornano, Marshal of France (d. 1863) January 28 – George Hamilton-Gordon, 4th Earl of Aberdeen, Prime Minister of the United Kingdom (d. 1860) February 5 – Nancy Hanks, mother of Abraham Lincoln (d. 1818) February 20 – John E. Wool, general officer in the United States Army, who served during the War of 1812, Mexican–American War, and the American Civil War (d. 1869) February 29 – Leo von Klenze, German neoclassicist architect, painter and writer (d. 1864) March 12 – William Buckland, English geologist, paleontologist (d. 1856) March 22 – Samuel Hunter Christie, English physicist, mathematician (d. 1865) March 23 – Tom Molineaux, African-American boxer (d. 1818) March 27 – Jonathan Jennings, American politician and the first governor of Indiana (d. 1834) April 5 – Louis Spohr, German violinist, composer (d. 1859) April 13 – Friedrich Graf von Wrangel, Prussian field marshal (d. 1877) April 24 – Peter Vivian Daniel, Associate Justice of the Supreme Court of the United States (d. 1860) June 24 – Juan Antonio Lavalleja, Uruguayan military, political figure (d. 1853) July 21 – Charles Baudin, French admiral (d. 1854) July 22 – Friedrich Bessel, German mathematician, astronomer (d. 1846) July 27 – Denis Davydov, Russian general, poet (d. 1839) August 18 – Robert Taylor, British Radical writer, freethought advocate (d. 1844) September 4 – William Pope Duval, first civilian governor of the Florida Territory (d. 1854) October 13 – King Ferdinand VII of Spain (d. 1833) October 15 – Thomas Robert Bugeaud, Marshal of France and duke of Isly (d. 1849) October 19 Leigh Hunt, British critic, essayist (d. 1859) John McLoughlin, Canadian fur trader (d. 1857) October 20 – Henry Temple, 3rd Viscount Palmerston, Prime Minister of the United Kingdom (d. 1865) October – Sarah Biffen, armless English painter (d. 1850) November 24 – Zachary Taylor, 12th President of the United States (d. 1850) November 27 – August, Prince of Hohenlohe-Öhringen (d. 1853) Deaths February 4 – Princess Friederike Luise of Prussia, Prussian princess (b. 1714) February 27 – Count of St. Germain, French philosopher, adventurer (b. 1710) March 26 – Thomas Bond, American physician and surgeon (b. 1712) March 27 – Ralph Bigland, British officer of arms (b. 1712) March