The temperature on October 10, 1887 was about 12.0 °C. The air pressure was 8 kgf/m2 and came mainly from the west-southwest. The airpressure was 74 cm mercury. The atmospheric humidity was 77%. 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.
January 20 » The United States Senate allows the Navy to lease Pearl Harbor as a naval base.
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 8 » Herman Hollerith applies for US patent #395,781 for the 'Art of Compiling Statistics', which was his punched card calculator.
June 18 » The Reinsurance Treaty between Germany and Russia is signed.
July 6 » David Kalākaua, monarch of the Kingdom of Hawaii, is forced to sign the Bayonet Constitution, which transfers much of the king's authority to the Legislature of the Kingdom of Hawaii.
July 26 » Publication of the Unua Libro, founding the Esperanto movement.
Day of marriage February 16, 1918
The temperature on February 16, 1918 was between -4.2 °C and 1.6 °C and averaged -1.8 °C. There was 8.2 hours of sunshine (82%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south east. 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 21 » The last Carolina parakeet dies in captivity at the Cincinnati Zoo.
June 22 » The Hammond Circus Train Wreck kills 86 and injures 127 near Hammond, Indiana.
August 27 » Mexican Revolution: Battle of Ambos Nogales: U.S. Army forces skirmish against Mexican Carrancistas in the only battle of World War I fought on American soil.
October 10 » RMS Leinster is torpedoed and sunk by UB-123, killing 564, the worst-ever on the Irish Sea.
December 1 » The Kingdom of Serbs, Croats and Slovenes (later known as the Kingdom of Yugoslavia) is proclaimed.
December 27 » The Great Poland Uprising against the Germans begins.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I299977.php : accessed March 5, 2026), "Hilbrand Harkema (1887-????)".
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