The temperature on November 2, 1889 was about 6.1 °C. There was 2 mm of rain. The air pressure was 4 kgf/m2 and came mainly from the southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 97%. Source: KNMI
January 30 » Archduke Crown Prince Rudolf of Austria, heir to the Austro-Hungarian crown, is found dead with his mistress Baroness Mary Vetsera in the Mayerling.
March 31 » The Eiffel Tower is officially opened.
May 2 » Menelik II, Emperor of Ethiopia, signs the Treaty of Wuchale, giving Italy control over Eritrea.
May 31 » Johnstown Flood: Over 2,200 people die after a dam fails and sends a 60-foot (18-meter) wall of water over the town of Johnstown, Pennsylvania.
June 6 » The Great Seattle Fire destroys all of downtown Seattle.
September 23 » Nintendo Koppai (Later Nintendo Company, Limited) is founded by Fusajiro Yamauchi to produce and market the playing card game Hanafuda.
Day of marriage February 28, 1918
The temperature on February 28, 1918 was between -1.2 °C and 6.6 °C and averaged 3.2 °C. There was 1.1 mm of rain. There was 3.0 hours of sunshine (28%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 25 » German forces capture Tallinn to virtually complete the occupation of Estonia.
March 21 » World War I: The first phase of the German Spring Offensive, Operation Michael, begins.
March 25 » The Belarusian People's Republic is established.
July 4 » Bolsheviks kill Tsar Nicholas II of Russia and his family (Julian calendar date).
November 1 » Western Ukraine separates from Austria-Hungary.
November 10 » The Western Union Cable Office in North Sydney, Nova Scotia, receives a top-secret coded message from Europe (that would be sent to Ottawa and Washington, D.C.) that said on November 11, 1918, all fighting would cease on land, sea and in the air.
Day of death January 28, 1919
The temperature on January 28, 1919 was between -5.7 °C and 1.2 °C and averaged -1.5 °C. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
May 15 » The Winnipeg general strike begins. By 11:00, almost the whole working population of Winnipeg had walked off the job.
May 29 » Albert Einstein's theory of general relativity is tested (later confirmed) by Arthur Eddington and Andrew Claude de la Cherois Crommelin
July 27 » The Chicago Race Riot erupts after a racial incident occurred on a South Side beach, leading to 38 fatalities and 537 injuries over a five-day period.
September 28 » Race riots begin in Omaha, Nebraska.
December 17 » Uruguay becomes a signatory to the Buenos Aires copyright treaty.
December 23 » Sex Disqualification (Removal) Act 1919 becomes law in the United Kingdom.
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/I18032.php : accessed October 8, 2026), "Siemon Postma (1889-1919)".
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