The temperature on April 6, 1887 was about 3.5 °C. There was 10 mm of rain. The air pressure was 57 kgf/m2 and came mainly from the north-northeast. The airpressure was 75 cm mercury. The atmospheric humidity was 89%. 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.
February 2 » In Punxsutawney, Pennsylvania the first Groundhog Day is observed.
February 23 » The French Riviera is hit by a large earthquake, killing around 2,000.
April 4 » Argonia, Kansas elects Susanna M. Salter as the first female mayor in the United States.
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.
September 5 » A fire at the Theatre Royal, Exeter, kills 186.
November 9 » The United States receives rights to Pearl Harbor, Hawaii.
Day of marriage October 9, 1918
The temperature on October 9, 1918 was between 1.2 °C and 13.3 °C and averaged 8.1 °C. There was 7.5 hours of sunshine (67%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
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.
February 5 » Stephen W. Thompson shoots down a German airplane; this is the first aerial victory by the U.S. military.
March 25 » The Belarusian People's Republic is established.
April 21 » World War I: German fighter ace Manfred von Richthofen, better known as "The Red Baron", is shot down and killed over Vaux-sur-Somme in France.
June 22 » The Hammond Circus Train Wreck kills 86 and injures 127 near Hammond, Indiana.
September 10 » Russian Civil War: The Red Army captures Kazan.
October 30 » World War I: Lands of the Crown of Saint Stephen, a state union of Kingdom of Hungary and Triune Kingdom of Croatia, Slavonia and Dalmatia is abolished with decisions of Croatian and Hungarian parliaments
When copying data from this family tree, please include a reference to the origin: C.M.W.Vork-Drenth, "Family tree Drenth", database, Genealogy Online (https://www.genealogieonline.nl/drenth_stamboom/I2897.php : accessed February 25, 2026), "Harmannus Johannes Everhardus Swart (1887-????)".
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