The temperature on December 14, 1939 was between -0.4 °C and 1.7 °C and averaged 0.8 °C. The average windspeed was 2 Bft (weak wind) and was prevailing from the east. 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 17 » Second Sino-Japanese War: Battle of Nanchang between the Kuomintang and Japan begins.
March 30 » The Heinkel He 100 fighter sets a world airspeed record of 463mph (745km/h).
April 9 » African-American singer Marian Anderson gives a concert at the Lincoln Memorial after being denied the use of Constitution Hall by the Daughters of the American Revolution.
August 2 » Albert Einstein and Leo Szilard write a letter to Franklin D. Roosevelt, urging him to begin the Manhattan Project to develop a nuclear weapon.
September 17 » World War II: German submarineU-29 sinks the British aircraft carrier HMSCourageous.
December 2 » New York City's LaGuardia Airport opens.
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/I196603.php : accessed December 30, 2025), "Gijsbert Jan "Bert" Zijlstra (1939-2025)".
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