the day before about the treatment of bilious fever. Both are mortally wounded during the fight. Date unknown Hannah Snell reveals her sex to her Royal Marines compatriots. The King of Dahomey has income of 250,000 pounds from the overseas export of slaves. Maruyama Okyo paints The Ghost of Oyuki. Britain produces c. 2% of the entire world's output of industrial goods, before the Industrial Revolution begins. Galley slavery is abolished in Europe. World population: 791,000,000 Africa: 106,000,000 Asia: 502,000,000 Europe: 163,000,000 Latin-America: 16,000,000 Northern America: 2,000,000 Oceania: 2,000,000 Births January 24 – Nicolas Bergasse, French lawyer (d. 1832) January 24 – Helen Gloag, Scottish-born slave Empress of Morocco (d. 1790) March 16 – Caroline Herschel, German astronomer (d. 1848) April – Joanna Southcott, British religious fanatic (d. 1814) April 17 – François de Neufchâteau, French statesman, intellectual figure (d. 1828) May 2 – John André, British Army officer of the American Revolutionary War (d. 1780) May 20 – Stephen Girard, French-American banker, fourth richest American of all time (d. 1831) May 28 – Diogo de Carvalho e Sampayo, Portuguese diplomat, scientist (d. 1807) May 31 – Karl August von Hardenberg, Prussian politician (d. 1822) June 6 – William Morgan, British statistician, actuary (d. 1833) July 5 – Aimé Argand, Swiss physicist, inventor (d. 1803) July 9 – Louise Marie Thérèse Bathilde d'Orléans, last princess of Condé (d.1822) July 25 – Henry Knox, military officer of the Continental Army and later the United States Army, 1st United States Secretary of War (b. 1806) August 18 – Antonio Salieri, Italian composer (d. 1825) September 26 – Cuthbert Collingwood, 1st Baron Collingwood, British admiral (d. 1810) October 7 – Abraham Woodhull, Patriot spy during the American Revolutionary War (d. 1826) October 25 – Marie Le Masson Le Golft, French naturalist (b. 1826) October 31 – Leonor de Almeida Portugal, 4th Marquise of Alorna, Portuguese painter and poet (d. 1839) November 7 – Friedrich Leopold zu Stolberg-Stolberg, German poet (d. 1819) November 10 – Tipu Sultan, Sultan of Mysore (d. 1799) December 23 – Frederick Augustus I of Saxony (d. 1827) date unknown Toypurina, Medicine woman of the Tongva nation and rebel leader (d. 1799) Adwaita, Oldest tortoise (d. 2006) (alleged birth year; awaiting C-14 verification) Urszula Zamoyska, Polish noblewoman and socialite (d. 1808) Elizabeth Ryves, Irish writer and translator (d. 1797) Moulvi Syed Qudratullah, Bengali judge (d. 1839) Deaths January 16 –