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.
June 7 » American Temperance crusader Carrie Nation begins her campaign of vandalizing alcohol-serving establishments by destroying the inventory in a saloon in Kiowa, Kansas.
September 13 » Henry Bliss is the first person in the United States to be killed in an automobile accident.
September 23 » The American Asiatic Squadron destroys a Filipino battery at the Battle of Olongapo.
December 2 » Philippine–American War: The Battle of Tirad Pass, termed "The Filipino Thermopylae", is fought.
Day of marriage April 9, 1931
The temperature on April 9, 1931 was between 2.0 °C and 18.3 °C and averaged 10.3 °C. There was 0.4 mm of rain during 1.3 hours. There was 4.0 hours of sunshine (30%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 20 » The U.S. Congress approves the construction of the San Francisco–Oakland Bay Bridge by the state of California.
March 26 » Ho Chi Minh Communist Youth Union is founded in Vietnam.
October 1 » Clara Campoamor persuades the Constituent Cortes to enfranchise women in Spain's new constitution.
November 7 » The Chinese Soviet Republic is proclaimed on the anniversary of the October Revolution.
December 5 » Cathedral of Christ the Saviour in Moscow was destroyed on orders from Joseph Stalin.
December 11 » Statute of Westminster 1931: The British Parliament establishes legislative equality between the UK and the Dominions of the Commonwealth—Australia, Canada, Newfoundland, New Zealand, South Africa, and Ireland.
Day of death August 24, 1981
The temperature on August 24, 1981 was between 8.2 °C and 17.4 °C and averaged 13.7 °C. There was -0.1 mm of rain. There was 1.4 hours of sunshine (10%). The partly or heavily clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
In The Netherlands , there was from Friday, September 11, 1981 to Saturday, May 29, 1982 the cabinet Van Agt II, with Mr. A.A.M. van Agt (CDA) as prime minister.
January 19 » Iran hostage crisis: United States and Iranian officials sign an agreement to release 52 American hostages after 14 months of captivity.
February 6 » The National Resistance Army of Uganda launches an attack on a Ugandan Army installation in the central Mubende District to begin the Ugandan Bush War.
April 27 » Xerox PARC introduces the computer mouse.
June 7 » The Israeli Air Force destroys Iraq's Osiraq nuclear reactor during Operation Opera.
June 27 » The Central Committee of the Communist Party of China issues its "Resolution on Certain Questions in the History of Our Party Since the Founding of the People's Republic of China", laying the blame for the Cultural Revolution on Mao Zedong.
September 26 » Nolan Ryan sets a Major League record by throwing his fifth no-hitter.
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/I62190.php : accessed October 22, 2026), "Jacoba de Haan (1899-1981)".
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