The temperature on February 20, 1883 was about 7.1 °C. The air pressure was 4 kgf/m2 and came mainly from the south-southwest. The airpressure was 77 cm mercury. The atmospheric humidity was 79%. Source: KNMI
In The Netherlands , there was from August 20, 1879 to April 23, 1883 the cabinet Van Lijnden van Sandenburg, with Mr. C.Th. baron Van Lijnden van Sandenburg (conservatief-AR) as prime minister.
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
March 20 » The Paris Convention for the Protection of Industrial Property is signed.
May 24 » The Brooklyn Bridge in New York City is opened to traffic after 14 years of construction.
June 5 » The first regularly scheduled Orient Express departs Paris.
August 21 » An F5 tornado strikes Rochester, Minnesota, leading to the creation of the Mayo Clinic.
December 16 » Tonkin Campaign: French forces capture the Sơn Tây citadel.
December 21 » The Royal Canadian Dragoons and The Royal Canadian Regiment, the first Permanent Force cavalry and infantry regiments of the Canadian Army, are formed.
Day of death December 18, 1943
The temperature on December 18, 1943 was between -2.7 °C and 6.2 °C and averaged 2.1 °C. There was 1.1 mm of rain during 1.1 hours. The average windspeed was 5 Bft (very strong 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 15 » The Pentagon is dedicated in Arlington, Virginia.
June 20 » The Detroit race riot breaks out and continues for three more days.
June 20 » World War II: The Royal Air Force launches Operation Bellicose, the first shuttle bombing raid of the war. Lancaster bombers damage the V-2 rocket production facilities at the Zeppelin Works while en route to an air base in Algeria.
September 18 » World War II: Adolf Hitler orders the deportation of Danish Jews.
November 29 » World War II: The second session of the Anti-Fascist Council for the National Liberation of Yugoslavia (AVNOJ), held to determine the post-war ordering of the country, concludes in Jajce (present-day Bosnia and Herzegovina).
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: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I63459.php : accessed October 19, 2026), "Gerrit Helder (1883-1943)".
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