The temperature on August 6, 1914 was between 13.0 °C and 19.7 °C and averaged 16.4 °C. There was 0.1 mm of rain. There was 9.6 hours of sunshine (63%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. 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.
May 17 » The Protocol of Corfu is signed, recognising full autonomy to Northern Epirus under nominal Albanian sovereignty.
August 3 » World War I: Germany declares war against France, while Romania declares its neutrality.
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 22 » A German submarine sinks three British cruisers over a seventy-minute period, killing almost 1500 sailors.
October 19 » First World War: The First Battle of Ypres begins.
November 5 » World War I: France and the British Empire declare war on the Ottoman Empire.
Day of marriage August 20, 1938
The temperature on August 20, 1938 was between 12.1 °C and 17.9 °C and averaged 15.3 °C. There was 0.2 mm of rain during 0.1 hours. There was 0.4 hours of sunshine (3%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
February 18 » Second Sino-Japanese War: During the Nanking Massacre, the Nanking Safety Zone International Committee is renamed "Nanking International Rescue Committee", and the safety zone in place for refugees falls apart.
March 12 » Anschluss: German troops occupy and absorb Austria.
August 20 » Lou Gehrig hits his 23rd career grand slam, a record that stood for 75 years until it was broken by Alex Rodriguez.
September 27 » The ocean liner Queen Elizabeth is launched in Glasgow.
September 30 » Britain, France, Germany and Italy sign the Munich Agreement, whereby Germany annexes the Sudetenland region of Czechoslovakia.
September 30 » The League of Nations unanimously outlaws "intentional bombings of civilian populations".
Day of death February 24, 1943
The temperature on February 24, 1943 was between -0.4 °C and 3.9 °C and averaged 2.3 °C. The average windspeed was 2 Bft (weak wind) and was prevailing from the south. 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.
January 22 » World War II: Australian and American forces defeat Japanese army and navy units in the bitterly fought Battle of Buna–Gona.
February 22 » World War II: Members of the White Rose resistance, Sophie Scholl, Hans Scholl, and Christoph Probst are executed in Nazi Germany.
June 4 » A military coup in Argentina ousts Ramón Castillo.
July 24 » World War II: Operation Gomorrah begins: British and Canadian aeroplanes bomb Hamburg by night, and American planes bomb the city by day. By the end of the operation in November, 9,000 tons of explosives will have killed more than 30,000 people and destroyed 280,000 buildings.
November 26 » World War II: HMT Rohna is sunk by the Luftwaffe in an air attack in the Mediterranean north of Béjaïa, Algeria.
December 24 » World War II: U.S. General Dwight D. Eisenhower is named Supreme Allied Commander for the Invasion of Normandy.
When copying data from this family tree, please include a reference to the origin: Gert Jonker, "Family tree Jonker", database, Genealogy Online (https://www.genealogieonline.nl/jonker_stamboom/I27604.php : accessed February 5, 2026), "Jan Bouma (1914-1943)".
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