The temperature on November 20, 1868 was about -1.3 °C. The air pressure was 1 kgf/m2 and came mainly from the south-southeast. The airpressure was 77 cm mercury. The atmospheric humidity was 86%. Source: KNMI
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).
From June 4, 1868 till January 4, 1871 the Netherlands had a cabinet Van Bosse - Fock with the prime ministers Mr. P.P. van Bosse (liberaal) and Mr. C. Fock (liberaal).
February 2 » Pro-Imperial forces captured Osaka Castle from the Tokugawa shogunate and burned it to the ground.
March 5 » Mefistofele, an opera by Arrigo Boito, receives its premiere performance at La Scala.
March 23 » The University of California is founded in Oakland, California when the Organic Act is signed into law.
April 10 » At Arogee in Abyssinia, British and Indian forces defeat an army of Emperor Tewodros II. While 700 Ethiopians are killed and many more injured, only two British/Indian troops die.
June 10 » Mihailo Obrenović III, Prince of Serbia is assassinated.
October 7 » Cornell University holds opening day ceremonies; initial student enrollment is 412, the highest at any American university to that date.
Day of marriage May 26, 1892
The temperature on May 26, 1892 was about 24.3 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 53%. Source: KNMI
In The Netherlands , there was from August 21, 1891 to May 9, 1894 the cabinet Van Tienhoven, with Mr. G. van Tienhoven (unie-liberaal) as prime minister.
January 15 » James Naismith publishes the rules of basketball.
April 15 » The General Electric Company is formed.
May 28 » In San Francisco, John Muir organizes the Sierra Club.
October 12 » The Pledge of Allegiance is first recited by students in many US public schools.
October 26 » Ida B. Wells publishes Southern Horrors: Lynch Law in All Its Phases.
December 9 » English football club Newcastle United is founded.
Day of death May 18, 1945
The temperature on May 18, 1945 was between 9.2 °C and 19.4 °C and averaged 14.5 °C. There was 11.5 hours of sunshine (73%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
In The Netherlands , there was from February 23, 1945 to June 24, 1945 the cabinet Gerbrandy III, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
From June 24, 1945 till July 3, 1946 the Netherlands had a cabinet Schermerhorn - Drees with the prime ministers Prof. ir. W. Schermerhorn (VDB) and W. Drees (PvdA).
January 3 » World War II: Admiral Chester W. Nimitz is placed in command of all U.S. Naval forces in preparation for planned assaults against Iwo Jima and Okinawa in Japan.
March 26 » World War II: The Battle of Iwo Jima ends as the island is officially secured by American forces.
June 29 » The Soviet Union annexes the Czechoslovak province of Carpathian Ruthenia.
August 19 » August Revolution: Viet Minh led by Ho Chi Minh take power in Hanoi, Vietnam.
August 23 » World War II: Soviet–Japanese War: The USSR State Defense Committee issues Decree no. 9898cc "About Receiving, Accommodation, and Labor Utilization of the Japanese Army Prisoners of War".
November 20 » Nuremberg trials: Trials against 24 Nazi war criminals start at the Palace of Justice at Nuremberg.
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/I284.php : accessed January 24, 2026), "Jan Keizer (1868-1945)".
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