The temperature on August 30, 1913 was between 14.2 °C and 22.7 °C and averaged 18.5 °C. There was 0.5 hours of sunshine (4%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south east. 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 17 » The Armory Show opens in New York City, displaying works of artists who are to become some of the most influential painters of the early 20th century.
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.
July 12 » Serbian forces begin their siege of the Bulgarian city of Vidin; the siege is later called off when the war ends.
August 13 » First production in the UK of stainless steel by Harry Brearley.
October 14 » Senghenydd colliery disaster, the United Kingdom's worst coal mining accident, claims the lives of 439 miners.
November 7 » The first day of the Great Lakes Storm of 1913, a massive blizzard that ultimately killed 250 and caused over $5 million (about $118,098,000 in 2013 dollars) damage. Winds reach hurricane force on this date.
Day of marriage August 30, 1939
The temperature on August 30, 1939 was between 12.2 °C and 23.8 °C and averaged 17.4 °C. There was 0.1 mm of rain. There was 8.8 hours of sunshine (64%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north. 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 26 » Spanish Civil War: Catalonia Offensive: Troops loyal to nationalist General Francisco Franco and aided by Italy take Barcelona.
March 26 » Spanish Civil War: Nationalists begin their final offensive of the war.
May 21 » The Canadian National War Memorial is unveiled by King George VI and Queen Elizabeth in Ottawa, Ontario, Canada.
August 25 » The United Kingdom and Poland form a military alliance in which the UK promises to defend Poland in case of invasion by a foreign power.
September 10 » World War II: The submarine HMSOxley is mistakenly sunk by the submarine HMSTriton near Norway and becomes the Royal Navy's first loss of a submarine in the war.
December 22 » Indian Muslims observe a "Day of Deliverance" to celebrate the resignations of members of the Indian National Congress over their not having been consulted over the decision to enter World War II with the United Kingdom.
Day of death December 13, 1944
The temperature on December 13, 1944 was between -0.1 °C and 6.0 °C and averaged 3.2 °C. There was 1.7 hours of sunshine (22%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
March 4 » World War II: After the success of Big Week, the USAAF begins a daylight bombing campaign of Berlin.
April 16 » World War II: Allied forces start bombing Belgrade, killing about 1,100 people. This bombing fell on the Orthodox Christian Easter.
June 22 » World War II: Opening day of the Soviet Union's Operation Bagration against the Army Group Centre.
August 9 » The United States Forest Service and the Wartime Advertising Council release posters featuring Smokey Bear for the first time.
September 8 » World War II: London is hit by a V-2 rocket for the first time.
October 25 » Second World War: Heinrich Himmler orders a crackdown on the Edelweiss Pirates, a loosely organized youth culture in Nazi Germany that had assisted army deserters and others to hide from the Third Reich.
When copying data from this family tree, please include a reference to the origin: Tijs van den Brink, "Parentele of Geurt Jacobs", database, Genealogy Online (https://www.genealogieonline.nl/geurt-jacobs/I34472.php : accessed February 18, 2026), "Hendrik van Keulen (1913-1944)".
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