The temperature on March 31, 1863 was about 7.8 °C. The air pressure was 1 kgf/m2 and came mainly from the north-northeast. The airpressure was 77 cm mercury. The atmospheric humidity was 43%. Source: KNMI
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.
January 8 » American Civil War: Second Battle of Springfield.
May 12 » American Civil War: Battle of Raymond: Two divisions of James B. McPherson's XVII Corps turn the left wing of Confederate General John C. Pemberton's defensive line on Fourteen Mile Creek, opening up the interior of Mississippi to the Union Army during the Vicksburg Campaign.
May 21 » American Civil War: The Union Army succeeds in closing off the last escape route from Port Hudson, Louisiana, in preparation for the coming siege.
June 14 » Second Assault on the Confederate works at the Siege of Port Hudson during the American Civil War.
July 9 » American Civil War: The Siege of Port Hudson ends, giving the Union complete control of the Mississippi River.
August 4 » Matica slovenská, Slovakia's public-law cultural and scientific institution focusing on topics around the Slovak nation, is established in Martin.
Day of marriage November 23, 1887
The temperature on November 23, 1887 was about 1.8 °C. There was 2 mm of rain. The air pressure was 4 kgf/m2 and came mainly from the northeast. The airpressure was 76 cm mercury. The atmospheric humidity was 98%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
April 4 » Argonia, Kansas elects Susanna M. Salter as the first female mayor in the United States.
April 28 » A week after being arrested by the Prussian Secret Police, French police inspector Guillaume Schnaebelé is released on order of William I, German Emperor, defusing a possible war.
June 8 » Herman Hollerith applies for US patent #395,781 for the 'Art of Compiling Statistics', which was his punched card calculator.
June 23 » The Rocky Mountains Park Act becomes law in Canada creating the nation's first national park, Banff National Park.
October 1 » Balochistan is conquered by the British Empire.
November 13 » Bloody Sunday clashes in central London.
Day of death September 14, 1952
The temperature on September 14, 1952 was between 6.7 °C and 15.2 °C and averaged 11.3 °C. There was 2.2 hours of sunshine (17%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
February 20 » Emmett Ashford becomes the first African-American umpire in organized baseball by being authorized to be a substitute umpire in the Southwestern International League.
March 20 » The US Senate ratifies the Security Treaty Between the United States and Japan.
May 3 » The Kentucky Derby is televised nationally for the first time, on the CBS network.
July 3 » The Constitution of Puerto Rico is approved by the United States Congress.
October 8 » The Harrow and Wealdstone rail crash kills 112 people.
November 1 » Nuclear weapons testing: The United States successfully detonates Ivy Mike, the first thermonuclear device, at the Eniwetok atoll. The explosion had a yield of ten megatons TNT equivalent.
When copying data from this family tree, please include a reference to the origin: Hendrik Dreyer, "Dreyer Tree", database, Genealogy Online (https://www.genealogieonline.nl/dreyer-tree/I13929.php : accessed February 20, 2026), "Jan Wilhelmus Viljoen (1863-1952)".
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