The temperature on June 27, 1866 was about 29.1 °C. The air pressure was 6.5 kgf/m2 and came mainly from the east-southeast. The airpressure was 76 cm mercury. The atmospheric humidity was 39%. Source: KNMI
In The Netherlands , there was from February 1, 1862 to February 10, 1866 the cabinet Thorbecke II, with Mr. J.R. Thorbecke (liberaal) as prime minister.
In The Netherlands , there was from February 10, 1866 to June 1, 1866 the cabinet Fransen van de Putte, with I.D. Fransen van de Putte (liberaal) as prime minister.
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).
April 6 » The Grand Army of the Republic, an American patriotic organization composed of Union veterans of the American Civil War, is founded. It lasts until 1956.
May 1 » The Memphis Race Riots begin. In three days time, 46 blacks and two whites were killed. Reports of the atrocities influenced passage of the Fourteenth Amendment to the United States Constitution.
June 24 » Battle of Custoza: An Austrian army defeats the Italian army during the Austro-Prussian War.
July 3 » Austro-Prussian War is decided at the Battle of Königgrätz, resulting in Prussia taking over as the prominent German nation from Austria.
August 17 » The Grand Duchy of Baden announces her withdrawal from the German Confederation and signs a treaty of peace and alliance with Prussia.
September 22 » The Battle of Curupayty is Paraguay's only significant victory in the Paraguayan War.
Day of marriage January 24, 1895
The temperature on January 24, 1895 was about 0.3 °C. There was 0.5 mm of rain. The airpressure was 75 cm mercury. The atmospheric humidity was 96%. Source: KNMI
February 9 » William G. Morgan creates a game called Mintonette, which soon comes to be referred to as volleyball.
June 28 » The United States Court of Private Land Claims rules James Reavis’s claim to Barony of Arizona is "wholly fictitious and fraudulent."
October 22 » In Paris an express train derails after overrunning the buffer stop, crossing almost 30 metres (100ft) of concourse before crashing through a wall and falling 10 metres (33ft) to the road below.
November 5 » George B. Selden is granted the first U.S. patent for an automobile.
November 8 » While experimenting with electricity, Wilhelm Röntgen discovers the X-ray.
December 28 » Wilhelm Röntgen publishes a paper detailing his discovery of a new type of radiation, which later will be known as x-rays.
Day of death December 17, 1956
The temperature on December 17, 1956 was between 8.6 °C and 12.1 °C and averaged 10.2 °C. There was 2.6 mm of rain during 6.8 hours. There was -0.1 hours of sunshine (0%). The almost completely overcast was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
January 3 » A fire damages the top part of the Eiffel Tower.
March 1 » Formation of the East German Nationale Volksarmee.
May 1 » A doctor in Japan reports an "epidemic of an unknown disease of the central nervous system", marking the official discovery of Minamata disease.
May 1 » The polio vaccine developed by Jonas Salk is made available to the public.
June 5 » Elvis Presley introduces his new single, "Hound Dog", on The Milton Berle Show, scandalizing the audience with his suggestive hip movements.
November 13 » The Supreme Court of the United States declares Alabama laws requiring segregated buses illegal, thus ending the Montgomery Bus Boycott.
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/I108550.php : accessed October 13, 2026), "Sjouke Koopal (1866-1956)".
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