The temperature on November 11, 1861 was about 5.9 °C. The air pressure was 8 kgf/m2 and came mainly from the south-southwest. The airpressure was 75 cm mercury. The atmospheric humidity was 92%. Source: KNMI
From February 23, 1860 till March 14, 1861 the Netherlands had a cabinet Van Hall - Van Heemstra with the prime ministers Mr. F.A. baron Van Hall (conservatief-liberaal) and Mr. S. baron Van Heemstra (liberaal).
From March 14, 1861 till January 31, 1862 the Netherlands had a cabinet Van Zuijlen van Nijevelt - Loudon with the prime ministers Mr. J.P.P. baron Van Zuijlen van Nijevelt (conservatief-liberaal) and Mr. J. Loudon (liberaal).
January 10 » American Civil War: Florida becomes the third state to secede from the Union.
April 17 » The state of Virginia's secession convention votes to secede from the United States, later becoming the eighth state to join the Confederate States of America.
May 6 » American Civil War: Arkansas secedes from the Union.
June 17 » American Civil War: Battle of Vienna, Virginia.
July 25 » American Civil War: The United States Congress passes the Crittenden–Johnson Resolution, stating that the war is being fought to preserve the Union and not to end slavery.
November 1 » American Civil War: U.S. President Abraham Lincoln appoints George B. McClellan as the commander of the Union Army, replacing General Winfield Scott.
Day of marriage January 29, 1888
The temperature on January 29, 1888 was about -3.1 °C. There was 0.5 mm of rain. The air pressure was 4 kgf/m2 and came mainly from the east-northeast. The airpressure was 76 cm mercury. The atmospheric humidity was 92%. 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.
In The Netherlands , there was from April 21, 1888 to August 21, 1891 the cabinet Mackay, with Mr. A. baron Mackay (AR) as prime minister.
March 15 » Start of the Anglo-Tibetan War of 1888.
April 6 » Thomas Green Clemson dies, bequeathing his estate to the State of South Carolina to establish Clemson Agricultural College.
September 8 » Isaac Peral's submarine is first tested.
September 22 » The first issue of National Geographic Magazine is published.
October 21 » Foundation of the Swiss Social Democratic Party.
October 30 » The Rudd Concession is granted by Matabeleland to agents of Cecil Rhodes.
Day of death December 21, 1940
The temperature on December 21, 1940 was between -7.3 °C and -1.4 °C and averaged -5.3 °C. There was 6.7 hours of sunshine (87%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
May 15 » World War II: After fierce fighting, the poorly trained and equipped Dutch troops surrender to Germany, marking the beginning of five years of occupation.
June 10 » World War II: Military resistance to the German occupation of Norway ends.
June 16 » A Communist government is installed in Lithuania.
September 29 » Two Avro Ansons collide in mid-air over New South Wales, Australia, remain locked together, then land safely.
November 23 » World War II: Romania becomes a signatory of the Tripartite Pact, officially joining the Axis powers.
November 27 » World War II: At the Battle of Cape Spartivento, the Royal Navy engages the Regia Marina in the Mediterranean Sea.
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/I1477.php : accessed February 16, 2026), "Klaas de Vet (1861-1940)".
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