The temperature on November 9, 1890 was about 9.6 °C. There was 2 mm of rain. The air pressure was 1 kgf/m2 and came mainly from the south-southeast. The airpressure was 75 cm mercury. The atmospheric humidity was 77%. Source: KNMI
January 22 » The United Mine Workers of America is founded in Columbus, Ohio.
July 1 » Canada and Bermuda are linked by telegraph cable.
July 10 » Wyoming is admitted as the 44th U.S. state.
November 4 » City and South London Railway: London's first deep-level tube railway opens between King William Street and Stockwell.
November 23 » King William III of the Netherlands dies without a male heir and a special law is passed to allow his daughter Princess Wilhelmina to succeed him.
December 22 » Cornwallis Valley Railway begins operation between Kentville and Kingsport, Nova Scotia.
Day of marriage August 1, 1918
The temperature on August 1, 1918 was between 5.8 °C and 21.4 °C and averaged 14.6 °C. There was 13.9 hours of sunshine (89%). The average windspeed was 2 Bft (weak wind) 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.
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 25 » The Ukrainian People's Republic declares independence from Soviet Russia.
April 20 » Manfred von Richthofen, a.k.a. The Red Baron, shoots down his 79th and 80th victims, his final victories before his death the following day.
August 13 » Bayerische Motoren Werke AG (BMW) established as a public company in Germany.
September 29 » The Hindenburg Line is broken by an Allied attack.
October 10 » RMS Leinster is torpedoed and sunk by UB-123, killing 564, the worst-ever on the Irish Sea.
November 21 » The Parliament (Qualification of Women) Act 1918 is passed, allowing women to stand for Parliament in the UK.
Day of death April 19, 1954
The temperature on April 19, 1954 was between 2.7 °C and 9.0 °C and averaged 5.5 °C. There was 0.5 mm of rain during 0.4 hours. There was 7.3 hours of sunshine (52%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
February 10 » U.S. President Dwight D. Eisenhower warns against United States intervention in Vietnam.
May 13 » The original Broadway production of The Pajama Game opens and runs for another 1,063 performances. Later received three Tony Awards for Best Musical, Best Performance by a Featured Actress in a Musical, and Best Choreography.
June 14 » U.S. President Dwight D. Eisenhower signs a bill into law that places the words "under God" into the United States Pledge of Allegiance.
September 30 » The U.S. Navy submarine USSNautilus is commissioned as the world's first nuclear-powered vessel.
November 19 » Télé Monte Carlo, Europe's oldest private television channel, is launched by Prince Rainier III.
December 23 » First successful kidney transplant is performed by J. Hartwell Harrison and Joseph Murray.
When copying data from this family tree, please include a reference to the origin: Sim Mostert, "Genealogy Pot en Smit", database, Genealogy Online (https://www.genealogieonline.nl/genealogie_pot_smit/I4089.php : accessed February 8, 2026), "WILLEM POT (1890-1954)".
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