The temperature on June 21, 1911 was between 11.2 °C and 18.1 °C and averaged 14.5 °C. There was 3.4 hours of sunshine (20%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
April 29 » Tsinghua University, one of mainland China's leading universities, is founded.
May 15 » In Standard Oil Co. of New Jersey v. United States, the United States Supreme Court declares Standard Oil to be an "unreasonable" monopoly under the Sherman Antitrust Act and orders the company to be broken up.
August 29 » The Canadian Naval Service becomes the Royal Canadian Navy.
November 3 » Chevrolet officially enters the automobile market in competition with the Ford Model T.
November 19 » The Doom Bar in Cornwall claimed two ships, Island Maid and Angele, the latter killing the entire crew except the captain.
December 29 » Sun Yat-sen becomes the provisional President of the Republic of China; he formally takes office on January 1, 1912.
Day of marriage August 21, 1939
The temperature on August 21, 1939 was between 15.1 °C and 27.5 °C and averaged 19.9 °C. There was 0.1 mm of rain. There was 9.4 hours of sunshine (65%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south east. Source: KNMI
In The Netherlands , there was from June 24, 1937 to July 25, 1939 the cabinet Colijn IV, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from July 25, 1939 to August 10, 1939 the cabinet Colijn V, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
February 5 » Generalísimo Francisco Franco becomes the 68th "Caudillo de España", or Leader of Spain.
March 23 » The Hungarian air force attacks the headquarters of the Slovak air force in Spišská Nová Ves, killing 13 people and beginning the Slovak–Hungarian War.
April 18 » Robert Menzies, who became Australia's longest-serving prime minister, is elected as leader of the United Australia Party after the death of Prime Minister Joseph Lyons.
April 30 » The 1939–40 New York World's Fair opens.
May 22 » World War II: Germany and Italy sign the Pact of Steel.
September 4 » World War II: William J. Murphy commands the first Royal Air Force attack on Germany.
When copying data from this family tree, please include a reference to the origin: Cor van der Linden, "Kaizer/van der Linden family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kaizer/I1233.php : accessed March 4, 2026), "Maria Francisca Kaizer Keijser (1911-)".
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