The temperature on November 1, 1868 was about 11.7 °C. The air pressure was 21 kgf/m2 and came mainly from the west-southwest. The airpressure was 77 cm mercury. The atmospheric humidity was 85%. 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).
March 1 » The Pi Kappa Alpha fraternity is founded at the University of Virginia.
April 11 » Former shōgun Tokugawa Yoshinobu surrenders Edo Castle to Imperial forces, marking the end of the Tokugawa shogunate.
May 14 » Boshin War: The Battle of Utsunomiya Castle ends as former Tokugawa shogunate forces withdraw northward.
July 9 » The 14th Amendment to the United States Constitution is ratified, guaranteeing African Americans full citizenship and all persons in the United States due process of law.
November 30 » A statue of King Charles XII of Sweden is inaugurated in Stockholm's Kungsträdgården.
December 24 » The Greek Presidential Guard is established as the royal escort by King George I.
Day of marriage September 11, 1931
The temperature on September 11, 1931 was between 2.6 °C and 16.0 °C and averaged 9.8 °C. There was 5.5 hours of sunshine (42%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
March 11 » Ready for Labour and Defence of the USSR, abbreviated as GTO, is introduced in the Soviet Union.
May 1 » The Empire State Building is dedicated in New York City.
May 14 » Five unarmed civilians are killed in the Ådalen shootings, as the Swedish military is called in to deal with protesting workers.
July 1 » United Airlines begins service (as Boeing Air Transport).
September 18 » The Mukden Incident gives Japan a pretext to invade and occupy Manchuria.
October 17 » Al Capone is convicted of income tax evasion.
Day of death August 9, 1955
The temperature on August 9, 1955 was between 11.0 °C and 17.3 °C and averaged 14.6 °C. There was 0.1 mm of rain during 0.2 hours. There was 2.6 hours of sunshine (17%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
February 18 » Operation Teapot: Teapot test shot "Wasp" is successfully detonated at the Nevada Test Site with a yield of 1.2 kilotons. Wasp is the first of fourteen shots in the Teapot series.
April 12 » The polio vaccine, developed by Dr. Jonas Salk, is declared safe and effective.
July 15 » Eighteen Nobel laureates sign the Mainau Declaration against nuclear weapons, later co-signed by thirty-four others.
July 27 » The Austrian State Treaty restores Austrian sovereignty.
September 16 » The military coup to unseat President Juan Perón of Argentina is launched at midnight.
September 20 » The Treaty on Relations between the USSR and the GDR is signed.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I46330.php : accessed October 21, 2026), "Ette Ploeg (1868-1955)".
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