The temperature on December 15, 1887 was about 6.4 °C. There was 0.6 mm of rain. The air pressure was 30 kgf/m2 and came mainly from the south-southwest. The airpressure was 75 cm mercury. The atmospheric humidity was 95%. 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 8 » The Dawes Act authorizes the President of the United States to survey Native American tribal land and divide it into individual allotments.
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.
November 11 » August Spies, Albert Parsons, Adolph Fischer and George Engel are executed as a result of the Haymarket affair.
Day of marriage May 9, 1917
The temperature on May 9, 1917 was between 4.9 °C and 17.2 °C and averaged 10.8 °C. There was 13.2 hours of sunshine (86%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northeast. 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.
June 7 » World War I: Battle of Messines: Allied soldiers detonate a series of mines underneath German trenches at Messines Ridge, killing 10,000 German troops.
July 20 » World War I: The Corfu Declaration, which leads to the creation of the post-war Kingdom of Yugoslavia, is signed by the Yugoslav Committee and Kingdom of Serbia.
December 20 » Cheka, the first Soviet secret police force, is founded.
Day of death October 15, 1981
The temperature on October 15, 1981 was between 0.1 °C and 8.8 °C and averaged 4.8 °C. There was -0.1 mm of rain. The partly or heavily clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
In The Netherlands , there was from Friday, September 11, 1981 to Saturday, May 29, 1982 the cabinet Van Agt II, with Mr. A.A.M. van Agt (CDA) as prime minister.
January 2 » One of the largest investigations by a British police force ends when serial killer Peter Sutcliffe, the "Yorkshire Ripper", is arrested in Sheffield, South Yorkshire.
January 8 » A local farmer reports a UFO sighting in Trans-en-Provence, France, claimed to be "perhaps the most completely and carefully documented sighting of all time".
January 10 » Salvadoran Civil War: The FMLN launches its first major offensive, gaining control of most of Morazán and Chalatenango departments
April 12 » The first launch of a Space Shuttle (Columbia) takes place: The STS-1 mission.
June 11 » A magnitude 6.9 earthquake at Golbaf, Iran, kills at least 2,000.
October 21 » Andreas Papandreou becomes Prime Minister of Greece, ending an almost 50-year-long system of power dominated by conservative forces.
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/I84798.php : accessed October 10, 2026), "Berend Koops (1887-1981)".
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