The temperature on October 13, 1905 was between 2.3 °C and 11.9 °C and averaged 8.1 °C. There was 0.3 hours of sunshine (3%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
In The Netherlands , there was from August 1, 1901 to August 16, 1905 the cabinet Kuijper, with Dr. A. Kuijper (AR) as prime minister.
In The Netherlands , there was from August 17, 1905 to February 11, 1908 the cabinet De Meester, with Mr. Th. de Meester (unie-liberaal) as prime minister.
April 30 » Albert Einstein completes his doctoral thesis at the University of Zurich.
September 8 » The 7.2 Mw Calabria earthquake shakes southern Italy with a maximum Mercalli intensity of XI (Extreme), killing between 557 and 2,500 people.
September 23 » Norway and Sweden sign the "Karlstad treaty", peacefully dissolving the Union between the two countries.
November 12 » Norway holds a referendum resulting in popular approval of the Storting's decision to authorise the government to make the offer of the throne of the newly independent country.
November 21 » Albert Einstein's paper that leads to the mass–energy equivalence formula, E=mc², is published in the journal Annalen der Physik.
November 28 » Irish nationalist Arthur Griffith founds Sinn Féin as a political party with the main aim of establishing a dual monarchy in Ireland.
Day of marriage May 30, 1931
The temperature on May 30, 1931 was between 8.0 °C and 22.4 °C and averaged 15.8 °C. There was 0.3 mm of rain during 0.3 hours. There was 8.2 hours of sunshine (50%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
March 11 » Ready for Labour and Defence of the USSR, abbreviated as GTO, is introduced in the Soviet Union.
March 26 » Swissair is founded as the national airline of Switzerland.
March 31 » A Transcontinental & Western Air airliner crashes near Bazaar, Kansas, killing eight, including University of Notre Dame head football coach Knute Rockne.
July 1 » Wiley Post and Harold Gatty become the first people to circumnavigate the globe in a single-engined monoplane aircraft.
November 7 » The Chinese Soviet Republic is proclaimed on the anniversary of the October Revolution.
November 22 » Al-Mina'a SC is founded in Iraq.
Day of death January 19, 1947
The temperature on January 19, 1947 was between -1.0 °C and 6.7 °C and averaged 2.6 °C. There was 0.1 mm of rain. There was 3.7 hours of sunshine (44%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. Source: KNMI
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/I169536.php : accessed February 18, 2026), "Klaas Westra (1905-1947)".
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