The temperature on March 13, 1937 was between 2.8 °C and 8.9 °C and averaged 5.3 °C. There was 1.0 mm of rain during 0.6 hours. There was 3.6 hours of sunshine (31%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
January 15 » Spanish Civil War: Nationalists and Republican both withdraw after suffering heavy losses, ending the Second Battle of the Corunna Road.
July 6 » Spanish Civil War: Battle of Brunete: The battle begins with Spanish Republican troops going on the offensive against the Nationalists to relieve pressure on Madrid.
July 8 » Turkey, Iran, Iraq and Afghanistan sign the Treaty of Saadabad.
August 14 » The beginning of air-to-air combat of the Second Sino-Japanese War and World War II in general, when six Japanese bombers are shot down by Chinese fighters while raiding Chinese air bases.
September 21 » J. R. R. Tolkien's The Hobbit is published.
September 22 » Spanish Civil War: Peña Blanca is taken, ending the Battle of El Mazuco.
Day of death March 10, 1954
The temperature on March 10, 1954 was between 3.6 °C and 16.3 °C and averaged 8.7 °C. There was 2.1 hours of sunshine (18%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east-southeast. Source: KNMI
January 10 » BOAC Flight 781, a de Havilland DH.106 Comet 1, explodes and falls into the Tyrrhenian Sea killing 35 people.
January 21 » The first nuclear-powered submarine, the USSNautilus, is launched in Groton, Connecticut by Mamie Eisenhower, the First Lady of the United States.
May 13 » The anti-National Service Riots, by Chinese middle school students in Singapore, take place.
June 24 » First Indochina War: Battle of Mang Yang Pass: Viet Minh troops belonging to the 803rd Regiment ambush G.M.100 of France in An Khê.
November 1 » The Front de Libération Nationale fires the first shots of the Algerian War of Independence.
November 13 » Great Britain defeats France to capture the first ever Rugby League World Cup in Paris in front of around 30,000 spectators.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I379679.php : accessed February 2, 2026), "Siebe de Boer (1937-1954)".
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