The temperature on April 12, 1906 was between 4.3 °C and 20.7 °C and averaged 12.8 °C. There was 9.5 hours of sunshine (70%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
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.
February 11 » Pope Pius X publishes the encyclical Vehementer Nos.
February 18 » Édouard de Laveleye forms the Belgian Olympic Committee in Brussels.
April 8 » Auguste Deter, the first person to be diagnosed with Alzheimer's disease, dies.
July 11 » Murder of Grace Brown by Chester Gillette in the United States, inspiration for Theodore Dreiser's An American Tragedy.
December 10 » U.S. President Theodore Roosevelt wins the Nobel Peace Prize for his role in the mediation of the Russo-Japanese War, becoming the first American to win a Nobel Prize.
December 30 » The All-India Muslim League is founded in Dacca, East Bengal, British India (later Dhaka, Bangladesh).
Day of marriage March 15, 1930
The temperature on March 15, 1930 was between -0.6 °C and 9.0 °C and averaged 3.9 °C. There was 1.6 hours of sunshine (14%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. 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 29 » Heinrich Brüning is appointed German Reichskanzler.
April 28 » The Independence Producers hosted the first night game in the history of Organized Baseball in Independence, Kansas.
August 29 » The last 36 remaining inhabitants of St Kilda are voluntarily evacuated to other parts of Scotland.
October 27 » Ratifications exchanged in London for the first London Naval Treaty go into effect immediately, further limiting the expensive naval arms race among its five signatories.
November 11 » Patent number US1781541 is awarded to Albert Einstein and Leó Szilárd for their invention, the Einstein refrigerator.
December 16 » Bank robber Herman Lamm and members of his crew are killed by a 200-strong posse, following a botched bank robbery, in Clinton, Indiana.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I517536.php : accessed February 28, 2026), "Roelof Hospers (1906-)".
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