The temperature on May 4, 1913 was between 5.4 °C and 15.8 °C and averaged 9.6 °C. There was 7.2 mm of rain. There was 4.0 hours of sunshine (27%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
In The Netherlands , there was from February 12, 1908 to August 29, 1913 the cabinet Heemskerk, with Mr. Th. Heemskerk (AR) as prime minister.
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
February 20 » King O'Malley drives in the first survey peg to mark commencement of work on the construction of Canberra.
March 21 » Over 360 are killed and 20,000 homes destroyed in the Great Dayton Flood in Dayton, Ohio.
March 31 » The Vienna Concert Society rioted during a performance of modernist music by Arnold Schoenberg, Alban Berg, Alexander von Zemlinsky, and Anton von Webern, causing a premature end to the concert due to violence; this concert became known as the Skandalkonzert.
April 8 » The 17th Amendment to the United States Constitution, requiring direct election of Senators, becomes law.
August 13 » First production in the UK of stainless steel by Harry Brearley.
August 28 » Queen Wilhelmina opens the Peace Palace in The Hague.
Day of marriage July 21, 1937
The temperature on July 21, 1937 was between 13.0 °C and 22.3 °C and averaged 17.3 °C. There was 5.5 mm of rain during 2.4 hours. There was 1.5 hours of sunshine (9%). The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
February 16 » Wallace H. Carothers receives a United States patent for nylon.
March 2 » The Steel Workers Organizing Committee signs a collective bargaining agreement with U.S. Steel, leading to unionization of the United States steel industry.
March 8 » Spanish Civil War: The Battle of Guadalajara begins.
July 22 » New Deal: The United States Senate votes down President Franklin D. Roosevelt's proposal to add more justices to the Supreme Court of the United States.
August 2 » The Marihuana Tax Act of 1937 is passed in America, the effect of which is to render marijuana and all its by-products illegal.
December 13 » Second Sino-Japanese War: Battle of Nanking: The city of Nanjing, defended by the National Revolutionary Army under the command of General Tang Shengzhi, falls to the Japanese. This is followed by the Nanking Massacre, in which Japanese troops rape and slaughter hundreds of thousands of civilians.
Day of death December 20, 1966
The temperature on December 20, 1966 was between 2.3 °C and 9.6 °C and averaged 5.7 °C. There was 8.5 mm of rain during 4.8 hours. There was 2.4 hours of sunshine (31%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
August 10 » The Heron Road Bridge collapses while being built, killing nine workers in the deadliest construction accident in both Ottawa and Ontario.
October 4 » Basutoland becomes independent from the United Kingdom and is renamed Lesotho.
November 8 » U.S. President Lyndon B. Johnson signs into law an antitrust exemption allowing the National Football League to merge with the upstart American Football League.
December 24 » A Canadair CL-44 chartered by the United States military crashes into a small village in South Vietnam, killing 129.
December 27 » The Cave of Swallows, the largest known cave shaft in the world, is discovered in Aquismón, San Luis Potosí, Mexico.
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/I188699.php : accessed December 28, 2025), "Sietze Venema (1913-1966)".
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