The temperature on January 1, 1911 was between 0.4 °C and 5.9 °C and averaged 3.5 °C. There was 5.9 mm of rain. There was 1.0 hours of sunshine (13%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
January 29 » Mexican Revolution: Mexicali is captured by the Mexican Liberal Party, igniting the Magonista rebellion of 1911.
May 15 » More than 300 Chinese immigrants are killed in the Torreón massacre when the forces of the Mexican Revolution led by Emilio Madero take the city of Torreón from the Federales.
May 19 » Parks Canada, the world's first national park service, is established as the Dominion Parks Branch under the Department of the Interior.
June 16 » IBM founded as the Computing-Tabulating-Recording Company in Endicott, New York.
August 29 » The Canadian Naval Service becomes the Royal Canadian Navy.
November 17 » Omega Psi Phi fraternity was founded on the campus of Howard University in Washington, D.C.
Day of marriage May 11, 1933
The temperature on May 11, 1933 was between 6.7 °C and 16.1 °C and averaged 10.3 °C. There was 2.3 mm of rain during 1.9 hours. There was 1.8 hours of sunshine (12%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. 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.
In The Netherlands , there was from May 26, 1933 to July 31, 1935 the cabinet Colijn II, with Dr. H. Colijn (ARP) as prime minister.
April 1 » English cricketer Wally Hammond set a record for the highest individual Test innings of 336 not out, during a Test match against New Zealand.
May 12 » The Agricultural Adjustment Act, which restricts agricultural production through government purchase of livestock for slaughter and paying subsidies to farmers when they remove land from planting, is signed into law by President Franklin D. Roosevelt.
June 17 » Union Station massacre: In Kansas City, Missouri, four FBI agents and captured fugitive Frank Nash are gunned down by gangsters attempting to free Nash.
September 26 » As gangster Machine Gun Kelly surrenders to the FBI, he shouts out, "Don't shoot, G-Men!", which becomes a nickname for FBI agents.
October 14 » Germany withdraws from the League of Nations and World Disarmament Conference.
October 17 » Albert Einstein flees Nazi Germany and moves to the United States.
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/I139965.php : accessed October 15, 2026), "Jan Kooistra (1911-)".
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