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 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.
May 1 » The Federation of Organized Trades and Labor Unions demands the eight-hour work day in the United States.
July 5 » Germany takes possession of Cameroon.
October 6 » The Naval War College of the United States is founded in Rhode Island.
October 13 » The International Meridian Conference establishes the meridian of the Greenwich Observatory as the prime meridian.
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: The United States Fifth Army captures Rome, although much of the German Fourteenth Army is able to withdraw to the north.
June 14 » World War II: After several failed attempts, the British Army abandons Operation Perch, its plan to capture the German-occupied town of Caen.
July 6 » Jackie Robinson refuses to move to the back of a bus, leading to a court-martial.
September 17 » World War II: Soviet troops launch the Tallinn Offensive against Germany and pro-independence Estonian units.
October 25 » Second World War: The USSTang under Richard O'Kane (the top American submarine ace of the war) is sunk by the ship's own malfunctioning torpedo.
November 26 » World War II: A German V-2 rocket hits a Woolworth's shop in London, United Kingdom, killing 168 people.
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 23, 2026), "Harmen Postma (1884-1944)".
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