The temperature on October 25, 1889 was about 8.2 °C. There was 0.1 mm of rain. The air pressure was 10 kgf/m2 and came mainly from the northeast. The airpressure was 77 cm mercury. The atmospheric humidity was 95%. Source: KNMI
April 1 » The University of Northern Colorado was established, as the Colorado State Normal School.
June 26 » Bangui is founded by Albert Dolisie and Alfred Uzac in what was then the upper reaches of the French Congo.
August 13 » William Gray of Hartford, Connecticut is granted United States Patent Number 408,709 for "Coin-controlled apparatus for telephones."
September 28 » The General Conference on Weights and Measures (CGPM) defines the length of a meter.
November 14 » Pioneering female journalist Nellie Bly (aka Elizabeth Cochrane) begins a successful attempt to travel around the world in less than 80 days. She completes the trip in 72 days.
November 23 » The first jukebox goes into operation at the Palais Royale Saloon in San Francisco.
Day of marriage May 16, 1917
The temperature on May 16, 1917 was between 9.3 °C and 12.9 °C and averaged 10.3 °C. There was 2.3 hours of sunshine (15%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-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.
February 24 » World War I: The U.S. ambassador Walter Hines Page to the United Kingdom is given the Zimmermann Telegram, in which Germany pledges to ensure the return of New Mexico, Texas, and Arizona to Mexico if Mexico declares war on the United States.
March 15 » Tsar Nicholas II of Russia abdicates the Russian throne ending the 304-year Romanov dynasty.
May 21 » The Imperial War Graves Commission is established through royal charter to mark, record, and maintain the graves and places of commemoration of the British Empire's military forces.
June 5 » World War I: Conscription begins in the United States as "Army registration day".
June 26 » World War I: The American Expeditionary Forces begin to arrive in France. They will first enter combat four months later.
December 20 » Cheka, the first Soviet secret police force, is founded.
Day of death June 17, 1942
The temperature on June 17, 1942 was between 5.2 °C and 16.1 °C and averaged 10.7 °C. There was 4.5 mm of rain during 3.8 hours. There was 0.8 hours of sunshine (5%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
January 13 » World War II: First use of an aircraft ejection seat by a German test pilot in a Heinkel He 280 jet fighter.
January 26 » World War II: The first United States forces arrive in Europe landing in Northern Ireland.
February 8 » World War II: Dutch Colonial Army General Destruction Unit (AVC, Algemene Vernielings Corps) burns Banjarmasin, South Borneo to avoid Japanese capture.
March 14 » Anne Miller becomes the first American patient to be treated with penicillin, under the care of Orvan Hess and John Bumstead.
July 22 » Grossaktion Warsaw: The systematic deportation of Jews from the Warsaw ghetto begins.
December 7 » World War II: British commandos conduct Operation Frankton, a raid on shipping in Bordeaux harbour.
When copying data from this family tree, please include a reference to the origin: J. Ham, "Family tree Ham", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ham/I83470.php : accessed February 15, 2026), "Petrus Bernardus Jansen (1889-1942)".
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