The temperature on April 12, 1869 was about 24.5 °C. The air pressure was 2 kgf/m2 and came mainly from the west-southwest. The airpressure was 77 cm mercury. The atmospheric humidity was 39%. Source: KNMI
From June 4, 1868 till January 4, 1871 the Netherlands had a cabinet Van Bosse - Fock with the prime ministers Mr. P.P. van Bosse (liberaal) and Mr. C. Fock (liberaal).
March 6 » Dmitri Mendeleev presents the first periodic table to the Russian Chemical Society.
April 17 » Morelos is admitted as the 27th state of Mexico.
June 27 » The Republic of Ezo on the island of Hokkaido ends after being defeated by Japanese Imperial troops.
October 16 » Girton College, Cambridge is founded, becoming England's first residential college for women.
November 6 » In New Brunswick, New Jersey, Rutgers College defeats Princeton University (then known as the College of New Jersey), 6–4, in the first official intercollegiate American football game.
November 22 » In Dumbarton, Scotland, the clipper Cutty Sark is launched
Day of marriage April 25, 1902
The temperature on April 25, 1902 was between 5.9 °C and 15.6 °C and averaged 10.9 °C. There was 14.1 hours of sunshine (97%). Source: KNMI
April 14 » James Cash Penney opens his first store in Kemmerer, Wyoming.
May 31 » Second Boer War: The Treaty of Vereeniging ends the war and ensures British control of South Africa.
June 28 » The U.S. Congress passes the Spooner Act, authorizing President Theodore Roosevelt to acquire rights from Colombia for the Panama Canal.
August 9 » Edward VII and Alexandra of Denmark are crowned King and Queen of the United Kingdom of Great Britain and Ireland.
August 22 » Cadillac Motor Company is founded.
December 10 » The opening of the reservoir of the Aswan Dam in Egypt.
Day of death May 31, 1919
The temperature on May 31, 1919 was between 8.2 °C and 23.0 °C and averaged 15.4 °C. There was 12.9 hours of sunshine (79%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. 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.
January 21 » A revolutionary Irish parliament is founded and declares the independence of the Irish Republic. One of the first engagements of the Irish War of Independence takes place.
March 2 » The first Communist International meets in Moscow.
May 27 » The NC-4 aircraft arrives in Lisbon after completing the first transatlantic flight.
July 11 » The eight-hour day and free Sunday become law for workers in the Netherlands.
October 7 » KLM, the flag carrier of the Netherlands, is founded. It is the oldest airline still operating under its original name.
December 21 » American anarchist Emma Goldman is deported to Russia.
When copying data from this family tree, please include a reference to the origin: Klaas Konjer, "Family tree Konjer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-konjer/I2234.php : accessed February 12, 2026), "Jantje Westert (1869-1919)".
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