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.
August 14 » World War I: Start of the Battle of Lorraine, an unsuccessful French offensive designed to recover the lost province of Moselle from Germany.
August 20 » World War I: Brussels is captured during the German invasion of Belgium.
August 25 » World War I: Japan declares war on Austria-Hungary.
September 14 » HMASAE1, the Royal Australian Navy's first submarine, was lost at sea with all hands near East New Britain, Papua New Guinea.
September 17 » World War I: The Race to the Sea begins.
November 15 » Harry Turner becomes the first player to die from game-related injuries in the "Ohio League", the direct predecessor to the National Football League.
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.
January 14 » Norway claims Queen Maud Land in Antarctica.
March 15 » Germany occupies Czechoslovakia.
July 6 » Anti-Jewish legislation in prewar Nazi Germany closes the last remaining Jewish enterprises.
August 23 » World War II: Nazi Germany and the Soviet Union sign a non-aggression treaty, the Molotov–Ribbentrop Pact. In a secret addition to the pact, the Baltic states, Finland, Romania, and Poland are divided between the two nations.
September 14 » World War II: The Estonian military boards the Polish submarine ORPOrzeł in Tallinn, sparking a diplomatic incident that the Soviet Union will later use to justify the annexation of Estonia.
November 4 » World War II: U.S. President Franklin D. Roosevelt orders the United States Customs Service to implement the Neutrality Act of 1939, allowing cash-and-carry purchases of weapons by belligerents.
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.
January 10 » Time Warner is formed by the merger of Time Inc. and Warner Communications.
February 11 » Buster Douglas, a 42:1 underdog, knocks out Mike Tyson in ten rounds at Tokyo to win boxing's world Heavyweight title.
March 18 » In the largest art theft in US history, 12 paintings, collectively worth around $500million, are stolen from the Isabella Stewart Gardner Museum in Boston.
June 22 » Cold War: Checkpoint Charlie is dismantled in Berlin.
November 15 » The Communist People's Republic of Bulgaria is disestablished and a new republican government is instituted.
November 17 » Fugendake, part of the Mount Unzen volcanic complex, Nagasaki Prefecture, Japan, becomes active again and erupts.
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 20, 2026), "Sipke Siersema (1914-1990)".
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