About the day » Thursday April 12, 1866Calender converter

• Duivenvoorden, Heemstede, Noord-Holland, Nederland
• Knobel, Etten-Leur, Noord-Brabant, Nederland († 1866)
• * Cornelis Johannes Pullens, Baardwijk († 1934)
• Anna Margaretha Granneman, Bergschenhoek
• Van Der Kwast, Jaarsveld, Lopik, Utrecht, Nederland († 1866)
• Alphonse VAN COPPENOLLE, Renaix,9600,Flandre Orientale,Flandre,BELGIQUE († 1867)
• Ana Luzia Candida Valle, Araraquara, São Paulo, Brasil
• Aaltje, Wageningen, Gelderland, Niederlande († 1959)
• Abram van Oosterom, Haarzuilens († 1910)
• Adriaan Vermeiren, Baarle-Nassau († 1947)

• Anna Neefs (2), Antwerpen, Antwerpen, Belgium
• Andries van Meeuwen (66), Asperen, Gld, The Netherlands
• Aartje Westerbroek (0), Arnhem
• Antje Kollis (74), Hoorn
• Anna Cathgarina Johannes de Haas (65), Finsterwolde, Groningen, Netherlands
• Andries Joseph van Reij (65), Vaals
• Aart Veldkamp
• Anna Catharina Lambrechts (82), Schilde, Provincie Antwerpen
• Anna Barbara de VREDE (50), Maastricht, Limburg, Pays-Bas
• Anneke Laanstra (4), Buitenpost, gem. Achtkarspelen, Friesland, Nederland

• 1851 » Edward Walter Maunder, English astronomer and author († 1928)
• 1851 » José Gautier Benítez, Puerto Rican soldier and poet († 1880)
• 1852 » Ferdinand von Lindemann, German mathematician and academic († 1939)
• 1856 » Martin Conway, 1st Baron Conway of Allington, English mountaineer, cartographer, and politician († 1937)
• 1863 » Raul Pompeia, Brazilian writer († 1895)
• 1868 » Akiyama Saneyuki, Japanese admiral († 1918)
• 1869 » Henri Désiré Landru, French serial killer († 1922)
• 1871 » Ioannis Metaxas, Greek general and politician, 130th Prime Minister of Greece († 1941)
• 1874 » William B. Bankhead, American lawyer and politician, 47th Speaker of the United States House of Representatives († 1940)
• 1880 » Addie Joss, American baseball player and journalist († 1911)

• 1850 » Adoniram Judson, American lexicographer and missionary (b. 1788)
• 1866 » Peter Hesketh-Fleetwood, English politician, founded Fleetwood (b. 1801)
• 1872 » Nikolaos Mantzaros, Greek composer and theorist (b. 1795)
• 1878 » William M. Tweed, American lawyer and politician (b. 1823)
• 1879 » Richard Taylor, American general (b. 1826)
• 1885 » William Crowther, Dutch-Australian politician, 14th Premier of Tasmania (b. 1817)
• 1898 » Elzéar-Alexandre Taschereau, Canadian cardinal (b. 1820)
• 1902 » Marie Alfred Cornu, French physicist and academic (b. 1842)
• 1906 » Mahesh Chandra Nyayratna Bhattacharyya, Indian scholar, academic, and philanthropist (b. 1836)
• 1912 » Clara Barton, American nurse and humanitarian, founded the American Red Cross (b. 1821)

1. Jan
2. Johannes
3. Hendrik
4. Cornelis
5. Pieter
6. Willem
7. Gerrit
8. Jacob
9. Petrus
10. Jacobus
11. Dirk
12. Arie
13. Adrianus
14. Hendrikus
15. Klaas
16. Albert

1. Maria
2. Johanna
3. Anna
4. Cornelia
5. Elisabeth
6. Adriana
7. Catharina
8. Hendrika
9. Grietje
10. Wilhelmina
11. Aaltje
12. Trijntje
13. Antje
14. Neeltje
15. Elizabeth
16. Petronella

• 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.
• February 16 » Spencer Compton Cavendish, Marquess of Hartington becomes British Secretary of State for War.
• March 27 » President of the United States of America Andrew Johnson vetoes the Civil Rights Act of 1866. His veto is overridden by Congress and the bill passes into law on April 9.
• May 22 » Oliver Winchester founded the Winchester Repeating Arms
• July 20 » Austro-Prussian War: Battle of Lissa: The Austrian Navy, led by Admiral Wilhelm von Tegetthoff, defeats the Italian Navy near the island of Vis in the Adriatic Sea.
• July 30 » Armed Confederate veterans in New Orleans riot against a meeting of Radical Republicans, killing 48 people and injuring another 100.
• December 12 » Oaks explosion: The worst mining disaster in England kills 361 miners and rescuers.

The temperature on April 12, 1866 was about 11.1 °C. There was 3 mm of rain. The air pressure was 30 kgf/m² and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 78%.