The temperature on May 15, 1943 was between 7.7 °C and 18.9 °C and averaged 14.1 °C. There was 0.1 mm of rain. There was 13.3 hours of sunshine (85%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north. 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.
July 12 » German and Soviet forces engage in one of the largest armored engagements of all time.
October 17 » The Burma Railway (Burma–Thailand Railway) is completed.
October 26 » World War II: First flight of the Dornier Do 335 "Pfeil".
November 20 » World War II: Battle of Tarawa (Operation Galvanic) begins: United States Marines land on Tarawa Atoll in the Gilbert Islands and suffer heavy fire from Japanese shore guns and machine guns.
November 25 » World War II: Statehood of Bosnia and Herzegovina is re-established at the State Anti-fascist Council for the National Liberation of Bosnia and Herzegovina.
December 28 » Soviet authorities launch Operation Ulussy, beginning the deportation of the Kalmyk nation to Siberia and Central Asia.
Day of death September 18, 1946
The temperature on September 18, 1946 was between 10.5 °C and 16.6 °C and averaged 13.9 °C. There was 14.2 mm of rain during 7.5 hours. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
From June 24, 1945 till July 3, 1946 the Netherlands had a cabinet Schermerhorn - Drees with the prime ministers Prof. ir. W. Schermerhorn (VDB) and W. Drees (PvdA).
In The Netherlands , there was from July 3, 1946 to August 7, 1948 the cabinet Beel I, with Dr. L.J.M. Beel (KVP) as prime minister.
February 1 » The Parliament of Hungary abolishes the monarchy after nine centuries, and proclaims the Hungarian Republic.
February 8 » The People's Republic of Korea is dissolved in the North, establishing the communist-controlled Provisional People's Committee of North Korea.
April 3 » Japanese Lt. General Masaharu Homma is executed in the Philippines for leading the Bataan Death March.
July 1 » Crossroads Able is the first postwar nuclear weapon test.
August 8 » First flight of the Convair B-36, the world's first mass-produced nuclear weapon delivery vehicle, the heaviest mass-produced piston-engined aircraft, with the longest wingspan of any military aircraft, and the first bomber with intercontinental range.
December 25 » The first European self-sustaining nuclear chain reaction is initiated within the Soviet Union's F-1 nuclear reactor.
When copying data from this family tree, please include a reference to the origin: Dirk Zwinderman, "Family tree Zwinderman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-zwinderman/I481.php : accessed February 24, 2026), "Grietje Boltjes (1943-1946)".
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