The temperature on December 22, 1884 was about 3.0 °C. The air pressure was 30 kgf/m2 and came mainly from the north-northeast. The airpressure was 76 cm mercury. The atmospheric humidity was 77%. Source: KNMI
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.
February 1 » The first volume (A to Ant) of the Oxford English Dictionary is published.
February 19 » More than sixty tornadoes strike the Southern United States, one of the largest tornado outbreaks in U.S. history.
April 20 » Pope Leo XIII publishes the encyclical Humanum genus.
October 22 » The International Meridian Conference designates the Royal Observatory, Greenwich as the world's prime meridian.
December 6 » The Washington Monument in Washington, D.C., is completed.
December 10 » Mark Twain's Adventures of Huckleberry Finn is published.
Day of death April 20, 1944
The temperature on April 20, 1944 was between 5.0 °C and 15.0 °C and averaged 8.7 °C. There was 0.6 mm of rain during 1.8 hours. There was 4.1 hours of sunshine (29%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. 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.
June 4 » World War II: A hunter-killer group of the United States Navy captures the German submarine U-505: The first time a U.S. Navy vessel had captured an enemy vessel at sea since the 19th century.
July 17 » World War II: At Sainte-Foy-de-Montgommery in Normandy Field Marshal Erwin Rommel is seriously injured by allied aircraft while returning to his headquarters.
August 4 » The Holocaust: A tip from a Dutch informer leads the Gestapo to a sealed-off area in an Amsterdam warehouse, where they find and arrest Jewish diarist Anne Frank, her family, and four others.
August 9 » Continuation War: The Vyborg–Petrozavodsk Offensive, the largest offensive launched by Soviet Union against Finland during the Second World War, ends to a strategic stalemate. Both Finnish and Soviet troops at the Finnish front dug to defensive positions, and the front remains stable until the end of the war.
August 21 » Dumbarton Oaks Conference, prelude to the United Nations, begins.
September 3 » Holocaust: Diarist Anne Frank and her family are placed on the last transport train from the Westerbork transit camp to the Auschwitz concentration camp, arriving three days later.
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/I67364.php : accessed October 14, 2026), "Harmen Postma (1884-1944)".
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