The temperature on September 23, 1863 was about 10.8 °C. The air pressure was 1.5 kgf/m2 and came mainly from the south-southwest. The airpressure was 74 cm mercury. The atmospheric humidity was 81%. 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.
June 9 » American Civil War: Battle of Brandy Station, Virginia.
July 4 » American Civil War: The Army of Northern Virginia withdraws from the battlefield after losing the Battle of Gettysburg, signalling an end to the Confederate invasion of U.S. territory.
August 21 » Lawrence, Kansas is destroyed by pro-Confederate guerrillas known as Quantrill's Raiders.
September 7 » American Civil War: Union troops under Quincy A. Gillmore captures Fort Wagner in Morris Island after a 7-week siege.
September 20 » American Civil War: The Battle of Chickamauga, in northwestern Georgia, ends in a Confederate victory.
October 29 » American Civil War: Battle of Wauhatchie: Forces under Union General Ulysses S. Grant repel a Confederate attack led by General James Longstreet. Union forces thus open a supply line into Chattanooga, Tennessee.
Day of death June 26, 1936
The temperature on June 26, 1936 was between 12.0 °C and 17.5 °C and averaged 14.9 °C. There was 4.1 mm of rain during 3.5 hours. There was -0.1 hours of sunshine (0%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
January 8 » Kashf-e hijab decree is made and immediately enforced by Reza Shah, Iran's head of state, banning the wearing of Islamic veils in public.
April 5 » Tupelo–Gainesville tornado outbreak: An F5 tornado kills 233 in Tupelo, Mississippi.
July 20 » The Montreux Convention is signed in Switzerland, authorizing Turkey to fortify the Dardanelles and Bosphorus but guaranteeing free passage to ships of all nations in peacetime.
August 10 » Spanish Civil War: The Regional Defence Council of Aragon is dissolved by the Spanish Republic.
November 23 » Life magazine is reborn as a photo magazine and enjoys instant success.
December 11 » Abdication Crisis: Edward VIII's abdication as King of the United Kingdom and the British Dominions beyond the Seas, and Emperor of India, becomes effective.
When copying data from this family tree, please include a reference to the origin: Hendrik de Graaf, "Family tree Plugboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plugboer/I13101.php : accessed February 18, 2026), "Willem de Groot (1863-1936)".
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