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.
February 2 » In Punxsutawney, Pennsylvania the first Groundhog Day is observed.
February 8 » The Dawes Act authorizes the President of the United States to survey Native American tribal land and divide it into individual allotments.
February 23 » The French Riviera is hit by a large earthquake, killing around 2,000.
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 18 » The Reinsurance Treaty between Germany and Russia is signed.
July 26 » Publication of the Unua Libro, founding the Esperanto movement.
Day of marriage May 12, 1920
The temperature on May 12, 1920 was between 11.3 °C and 23.5 °C and averaged 15.8 °C. There was 11.1 mm of rain. There was 3.0 hours of sunshine (19%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
March 19 » The United States Senate rejects the Treaty of Versailles for the second time (the first time was on November 19, 1919).
March 22 » Azeri and Turkish army soldiers with participation of Kurdish gangs attacked the Armenian inhabitants of Shushi (Nagorno Karabakh).
April 28 » Azerbaijan is added to the Soviet Union.
September 1 » The Fountain of Time opens as a tribute to the 100 years of peace between the United States and Great Britain following the Treaty of Ghent.
December 19 » King Constantine I is restored as King of the Hellenes after the death of his son Alexander of Greece and a plebiscite.
December 24 » Gabriele D'Annunzio surrendered the Italian Regency of Carnaro in the city of Fiume to Italian armed forces.
Day of death June 20, 1926
The temperature on June 20, 1926 was between 10.6 °C and 21.1 °C and averaged 16.7 °C. There was 5.8 hours of sunshine (35%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
April 24 » The Treaty of Berlin is signed. Germany and the Soviet Union each pledge neutrality in the event of an attack on the other by a third party for the next five years.
May 4 » The United Kingdom general strike begins.
June 14 » Brazil leaves the League of Nations.
July 23 » Fox Film buys the patents of the Movietone sound system for recording sound onto film.
August 20 » Japan's public broadcasting company, Nippon Hōsō Kyōkai (NHK) is established.
September 8 » Germany is admitted to the League of Nations.
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/I89380.php : accessed October 13, 2026), "Derk Heerema (1887-1926)".
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