About the day » Sunday April 12, 1863Calender converter

• Aart Everts, Putten, Gelderland, Nederland († 1923)
• Albert Durks Bergsma, Appelscha, Ooststellingwerf, Friesland, Netherlands († 1902)
• De Schryver, Bornem († 1863)
• Aart Everts, Putten († 1923)
• Adriana Arkesteijn, Schipluiden († 1901)
• Adolphus Henry Wagner [Wki], Covington, Kentucky († 1945)
• Aaltje Ulenreef, Almelo († 1905)
• Adriana van den Hout, Loon op Zand, Noord-Brabant, Nederland († 1940)
• Adriana Jansens, Scherpenisse († 1901)
• Alida van Bakel, Heemsetde († 1941)

• Ariaantje Blijdorp (70), Charlois, Rotterdam
• Adriaan Kerstens (93), Etten-Leur
• Adriaantje Leendertsdr Blijdorp (64)
• Adriana (Jaantje) BOL,VAN DER (44), Zoetermeer,, Zuid-Holland, Nederland
• * Geertruydje (Geertje) van Veen (66), Rotterdam
• Angenietje van der Net (56), Dordrecht, ZH, Nederland
• Adrianus van Velsen (81), Overschie, Zuid-Holland, Nederland
• Adrianus van Velzen (81), Overschie
• Adriaantje Blijdorp (69), Charlois, Nederland
• Been (0), Aalsmeer, Noord-Holland, 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)

• 1817 » Charles Messier, French astronomer and academic (b. 1730)
• 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)

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

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. Neeltje
14. Antje
15. Petronella
16. Jacoba

• 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.
• The Netherlands had about 3.6 million citizens.
• January 26 » American Civil War: Governor of Massachusetts John Albion Andrew receives permission from the Secretary of War to raise a militia organization for men of African descent.
• March 19 » The SSGeorgiana, said to have been the most powerful Confederate cruiser, is destroyed on her maiden voyage with a cargo of munitions, medicines, and merchandise then valued at over $1,000,000.
• March 30 » Danish prince Wilhelm Georg is chosen as King George of Greece.
• October 29 » Eighteen countries meet in Geneva and agree to form the International Red Cross.
• November 27 » American Civil War: Battle of Mine Run: Union forces under General George Meade take up positions against troops led by Confederate General Robert E. Lee.
• November 29 » American Civil War: Battle of Fort Sanders: Union forces under Ambrose Burnside successfully defend Knoxville, Tennessee from Confederate forces under James Longstreet.

The temperature on April 12, 1863 was about 13.0 °C. The air pressure was 2.5 kgf/m² and came mainly from the east. The airpressure was 76 cm mercury. The atmospheric humidity was 40%.