March 27 » Emilio Aguinaldo leads Filipino forces for the only time during the Philippine–American War at the Battle of Marilao River.
March 30 » German Society of Chemistry issues an invitation to other national scientific organizations to appoint delegates to the International Committee on Atomic Weights.
April 18 » The St. Andrew's Ambulance Association is granted a royal charter by Queen Victoria.
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.
July 29 » The First Hague Convention is signed.
December 2 » Philippine–American War: The Battle of Tirad Pass, termed "The Filipino Thermopylae", is fought.
Day of marriage May 21, 1931
The temperature on May 21, 1931 was between 7.6 °C and 18.9 °C and averaged 13.0 °C. There was 1.0 mm of rain during 0.6 hours. There was 8.7 hours of sunshine (55%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northeast. 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 3 » The Hawke's Bay earthquake, New Zealand's worst natural disaster, kills 258.
February 20 » The U.S. Congress approves the construction of the San Francisco–Oakland Bay Bridge by the state of California.
March 3 » The United States adopts The Star-Spangled Banner as its national anthem.
March 14 » Alam Ara, India's first talking film, is released.
April 14 » The Spanish Cortes deposes King Alfonso XIII and proclaims the Second Spanish Republic.
November 7 » The Chinese Soviet Republic is proclaimed on the anniversary of the October Revolution.
Day of death January 15, 1971
The temperature on January 15, 1971 was between 0.4 °C and 3.8 °C and averaged 2.4 °C. There was 0.6 mm of rain during 1.5 hours. The almost completely overcast was. The average windspeed was 1 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
February 3 » New York Police Officer Frank Serpico is shot during a drug bust in Brooklyn and survives to later testify against police corruption.
June 7 » The United States Supreme Court overturns the conviction of Paul Cohen for disturbing the peace, setting the precedent that vulgar writing is protected under the First Amendment to the United States Constitution.
October 25 » The People's Republic of China replaces the Republic of China at the United Nations.
November 6 » The United States Atomic Energy Commission tests the largest U.S. underground hydrogen bomb, code-named Cannikin, on Amchitka Island in the Aleutians.
November 14 » Mariner 9 enters orbit around Mars.
December 16 » Bangladesh Liberation War and Indo-Pakistani War of 1971: The ceasefire of the Pakistan Army brings an end to both conflicts. This is commemorated annually as Victory Day in Bangladesh, and as Vijay Diwas in India.
When copying data from this family tree, please include a reference to the origin: Jan Werkman, "Family tree Jan Werkman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-jan-werkman/I96331.php : accessed May 30, 2024), "Klaas Bakker (1899-1971)".
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