The temperature on May 21, 1914 was between 8.8 °C and 22.8 °C and averaged 16.1 °C. There was 9.9 hours of sunshine (62%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
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.
April 20 » Nineteen men, women, and children die in the Ludlow Massacre during a Colorado coal-miners' strike.
July 11 » USSNevada(BB-36) is launched.
August 5 » World War I: The German minelayer SSKönigin Luise lays a minefield about 40 miles (64km) off the Thames Estuary (Lowestoft). She is intercepted and sunk by the British light-cruiser HMSAmphion.
September 5 » World War I: First Battle of the Marne begins. Northeast of Paris, the French attack and defeat German forces who are advancing on the capital.
October 5 » World War I: An aircraft successfully destroys another aircraft with gunfire.
November 9 » SMSEmden is sunk by HMASSydney in the Battle of Cocos.
Day of marriage May 11, 1939
The temperature on May 11, 1939 was between 8.5 °C and 17.3 °C and averaged 11.9 °C. There was 0.2 mm of rain during 0.2 hours. There was 4.8 hours of sunshine (31%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. 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.
March 26 » Spanish Civil War: Nationalists begin their final offensive of the war.
April 10 » Alcoholics Anonymous, A.A.'s "Big Book", is first published.
June 17 » Last public guillotining in France: Eugen Weidmann, a convicted murderer, is executed in Versailles outside the Saint-Pierre prison.
October 15 » The New York Municipal Airport (later renamed LaGuardia Airport) is dedicated.
November 15 » In Washington, D.C., US President Franklin D. Roosevelt lays the cornerstone of the Jefferson Memorial.
December 12 » HMSDuchess sinks after a collision with HMSBarham off the coast of Scotland with the loss of 124 men.
Day of death October 17, 1990
The temperature on October 17, 1990 was between 9.8 °C and 16.6 °C and averaged 13.4 °C. There was 6.3 mm of rain during 3.5 hours. The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
February 11 » Nelson Mandela is released from Victor Verster Prison outside Cape Town, South Africa after 27 years as a political prisoner.
March 11 » Patricio Aylwin is sworn in as the first democratically elected President of Chile since 1970.
April 23 » Namibia becomes the 160th member of the United Nations and the 50th member of the Commonwealth of Nations.
May 1 » The former Philippine Episcopal Church (supervised by the Episcopal Church of the United States of America) is granted full autonomy and raised to the status of an Autocephalous Anglican Province and renamed the Episcopal Church in the Philippines.
July 2 » In the 1990 Mecca tunnel tragedy, 1,400 Muslim pilgrims are suffocated to death and trampled upon in a pedestrian tunnel leading to the holy city of Mecca.
November 12 » Tim Berners-Lee publishes a formal proposal for the World Wide Web.
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/I122491.php : accessed October 18, 2026), "Sipke Siersema (1914-1990)".
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