The temperature on October 21, 1905 was between 2.3 °C and 6.9 °C and averaged 4.8 °C. There was 0.4 hours of sunshine (4%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. 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.
May 27 » Russo-Japanese War: The Battle of Tsushima begins.
September 11 » The Ninth Avenue derailment occurs in New York City, killing 13.
September 26 » Albert Einstein publishes the third of his Annus Mirabilis papers, introducing the special theory of relativity.
November 28 » Irish nationalist Arthur Griffith founds Sinn Féin as a political party with the main aim of establishing a dual monarchy in Ireland.
December 11 » A workers' uprising occurs in Kiev, Ukraine (then part of the Russian Empire), and establishes the Shuliavka Republic.
December 30 » Former Idaho Governor Frank Steunenberg is assassinated at the front gate of his home in Caldwell.
Day of death May 17, 1920
The temperature on May 17, 1920 was between 7.2 °C and 20.0 °C and averaged 12.6 °C. There was 0.5 mm of rain. There was 3.6 hours of sunshine (23%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. 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 2 » The second Palmer Raid, ordered by the US Department of Justice, results in 6,000 suspected communists and anarchists being arrested and held without trial.
January 17 » Alcohol Prohibition begins in the United States as the Volstead Act goes into effect.
March 13 » The Kapp Putsch briefly ousts the Weimar Republic government from Berlin.
March 19 » The United States Senate rejects the Treaty of Versailles for the second time (the first time was on November 19, 1919).
August 16 » The congress of the Communist Party of Bukhara opens. The congress would call for armed revolution.
August 18 » The Nineteenth Amendment to the United States Constitution is ratified, guaranteeing women's suffrage.
When copying data from this family tree, please include a reference to the origin: Wim de Vries, "Family tree Kaempff", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kaempff/I3470.php : accessed February 17, 2026), "Roelofje Post (1905-1920)".
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