January 23 » The Malolos Constitution is inaugurated, establishing the First Philippine Republic. Emilio Aguinaldo is sworn in as its first President.
March 6 » Bayer registers "Aspirin" as a trademark.
March 30 » German Society of Chemistry issues an invitation to other national scientific organizations to appoint delegates to the International Committee on Atomic Weights.
September 23 » The American Asiatic Squadron destroys a Filipino battery at the Battle of Olongapo.
October 11 » The Second Boer War erupts in South Africa between the British-ruled Cape Colony, and the Boer-ruled Transvaal and Orange Free State.
Day of marriage January 22, 1919
The temperature on January 22, 1919 was between -3.2 °C and 3.3 °C and averaged -0.8 °C. There was 7.4 hours of sunshine (87%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-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.
January 5 » The German Workers' Party, which would become the Nazi Party, is founded in Munich.
January 18 » Ignacy Jan Paderewski becomes Prime Minister of the newly independent Poland.
January 18 » World War I: The Paris Peace Conference opens in Versailles, France.
February 6 » The American Legion is founded.
May 29 » Albert Einstein's theory of general relativity is tested (later confirmed) by Arthur Eddington and Andrew Claude de la Cherois Crommelin
August 11 » Germany's Weimar Constitution is signed into law.
Day of death November 12, 1984
The temperature on November 12, 1984 was between 6.0 °C and 12.9 °C and averaged 8.9 °C. There was 6.4 hours of sunshine (71%). The almost cloudless was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south east. Source: KNMI
In The Netherlands , there was from Thursday, November 4, 1982 to Monday, July 14, 1986 the cabinet Lubbers I, with Drs. R.F.M. Lubbers (CDA) as prime minister.
January 7 » Brunei becomes the sixth member of the Association of Southeast Asian Nations (ASEAN).
February 10 » Kenyan soldiers kill an estimated 5000 ethnic Somali Kenyans in the Wagalla massacre.
March 29 » The Baltimore Colts load its possessions onto fifteen Mayflower moving trucks in the early morning hours and transfer its operations to Indianapolis.
June 8 » Homosexuality is declared legal in the Australian state of New South Wales.
July 18 » McDonald's massacre in San Ysidro, California: In a fast-food restaurant, James Oliver Huberty opens fire, killing 21 people and injuring 19 others before being shot dead by police.
August 30 » STS-41-D: The Space Shuttle Discovery takes off on its maiden voyage.
When copying data from this family tree, please include a reference to the origin: Eva Drenth, "Family tree Diverse", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-drenth/I18236.php : accessed February 22, 2026), "Wilhelmus Hendrikus van Leijenhorst (1899-1984)".
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