January 23 » The Malolos Constitution is inaugurated, establishing the First Philippine Republic. Emilio Aguinaldo is sworn in as its first President.
February 16 » Iceland's first football club, Knattspyrnufélag Reykjavíkur, is founded.
February 22 » Filipino forces led by General Antonio Luna launch counterattacks for the first time against the American forces during the Philippine–American War. The Filipinos fail to regain Manila from the Americans.
March 30 » German Society of Chemistry issues an invitation to other national scientific organizations to appoint delegates to the International Committee on Atomic Weights.
June 12 » New Richmond tornado: The eighth deadliest tornado in U.S. history kills 117 people and injures around 200.
July 29 » The First Hague Convention is signed.
Day of marriage May 16, 1924
The temperature on May 16, 1924 was between 6.7 °C and 16.9 °C and averaged 12.8 °C. There was 11.0 hours of sunshine (70%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 14 » The Computing-Tabulating-Recording Company changes its name to International Business Machines Corporation (IBM).
May 8 » The Klaipėda Convention is signed formally incorporating Klaipėda Region (Memel Territory) into Lithuania.
June 26 » The American occupation of the Dominican Republic ends after eight years.
October 7 » Andreas Michalakopoulos becomes prime minister of Greece for a short period of time.
December 1 » The National Hockey League's first United States-based franchise, the Boston Bruins, played their first game in league play at home, at the still-extant Boston Arena indoor hockey facility.
December 19 » The last Rolls-Royce Silver Ghost is sold in London, England.
Day of death April 18, 1970
The temperature on April 18, 1970 was between 7.8 °C and 13.3 °C and averaged 10.8 °C. There was 3.4 mm of rain during 3.8 hours. There was 2.2 hours of sunshine (16%). The heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
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/I12198.php : accessed October 20, 2026), "Bertha Klopstra (1899-1970)".
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