About the day » Wednesday July 11, 1866Calender converter

• Arie van der Waal, Maassluis, Zuid-Holland, Nederland
• Anna Maria Margaretha Teiken, Schwartenberg, Haren (Ems)
• Adrianus Arnoldus van de Ven, Baardwijk († 1922)
• Anna Maria Margaretha Teiken, Schwartenberg, Haren (Ems), Landkreis Emsland, Lower Saxony, Germany
• Angelina Rebecca Dawsey, Horry County, South Carolina
• Antje van Kleef, Zetten († 1937)
• Arie Martinus Exalto, Herwijnen, Gelderland, Nederland († 1942)
• Adrianus Hazenberg, Boxtel
• Anna Cornelia van Nispen, Rucphen, Noord-Brabant (Nederland) († 1926)

• Aaltje van Rossum, Houten
• Adalaide Bourgois, Nukerke (B)
• Agnes Everdina Beek (61), Schiedam,-
• adriaantje van DAM (36), numansdorp
• Aaltje Egberts Slot (65), Hollandscheveld
• Aart Gouswaard (65), Numansdorp
• Adrianus Kooijmans (Kooimans) (65), Rotterdam
• Aaltje Egberts Slot (64), Hoogeveen
• Diepeveen (0), Veenendaal Gelders (Ede)
• Adriaan van Eijkern (0), Haarlem

• 1846 » Léon Bloy, French author and poet († 1917)
• 1849 » N. E. Brown, English plant taxonomist and authority on succulents († 1934)
• 1850 » Annie Armstrong, American missionary († 1938)
• 1866 » Princess Irene of Hesse and by Rhine († 1953)
• 1875 » H. M. Brock, British painter and illustrator († 1960)
• 1880 » Friedrich Lahrs, German architect and academic († 1964)
• 1881 » Isabel Martin Lewis, American astronomer and author († 1966)
• 1882 » James Larkin White, American miner, explorer, and park ranger († 1946)
• 1886 » Boris Grigoriev, Russian painter and illustrator († 1939)
• 1888 » Carl Schmitt, German philosopher and jurist († 1985)

• 1797 » Ienăchiță Văcărescu, Romanian historian and philologist (b. 1740)
• 1806 » James Smith, Irish-American lawyer and politician (b. 1719)
• 1825 » Thomas P. Grosvenor, American soldier and politician (b. 1744)
• 1844 » Yevgeny Baratynsky, Russian philosopher and poet (b. 1800)
• 1897 » Patrick Jennings, Irish-Australian politician, 11th Premier of New South Wales (b. 1831)
• 1905 » Muhammad Abduh, Egyptian jurist and scholar (b. 1849)
• 1908 » Friedrich Traun, German sprinter and tennis player (b. 1876)
• 1909 » Simon Newcomb, Canadian-American astronomer and mathematician (b. 1835)
• 1929 » Billy Mosforth, English footballer and engraver (b. 1857)
• 1937 » George Gershwin, American pianist, songwriter, and composer (b. 1898)

• Koning Willem III (Huis van Oranje-Nassau) was from 1849 till 1890 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
• In The Netherlands , there was from February 1, 1862 to February 10, 1866 the cabinet Thorbecke II, with Mr. J.R. Thorbecke (liberaal) as prime minister.
• In The Netherlands , there was from February 10, 1866 to June 1, 1866 the cabinet Fransen van de Putte, with I.D. Fransen van de Putte (liberaal) as prime minister.
• From June 1, 1866 till June 4, 1868 the Netherlands had a cabinet Van Zuijlen van Nijevelt - Heemskerk with the prime ministers Mr. J.P.J.A. graaf Van Zuijlen van Nijevelt (AR) and Mr. J. Heemskerk Azn. (conservatief).
• The Netherlands had about 3.6 million citizens.
• January 12 » The Royal Aeronautical Society is formed in London.
• April 4 » Alexander II of Russia narrowly escapes an assassination attempt by Dmitry Karakozov in the city of Saint Petersburg.
• June 7 » One thousand eight hundred Fenian raiders are repelled back to the United States after looting and plundering the Saint-Armand and Frelighsburg areas of Canada East.
• July 28 » At the age of 18, Vinnie Ream becomes the first and youngest female artist to receive a commission from the United States government for a statue (of Abraham Lincoln).
• August 17 » The Grand Duchy of Baden announces her withdrawal from the German Confederation and signs a treaty of peace and alliance with Prussia.
• October 22 » A plebiscite ratifies the annexion of Veneto and Mantua to Italy, which had occurred three days before, on October 19.

The temperature on July 11, 1866 was about 22.8 °C. The air pressure was 4 kgf/m² and came mainly from the west-northwest. The airpressure was 77 cm mercury. The atmospheric humidity was 62%.