January 17 » El Yunque National Forest in Puerto Rico becomes part of the United States National Forest System as the Luquillo Forest Reserve.
April 29 » A landslide kills 70 people in Frank, in the District of Alberta, Canada.
May 29 » In the May Coup, Alexander I, King of Serbia, and Queen Draga, are assassinated in Belgrade by the Black Hand (Crna Ruka) organization.
June 16 » The Ford Motor Company is incorporated.
August 29 » The Slava, the last of the five Borodino-class battleships, is launched.
October 10 » The Women's Social and Political Union is founded in support of the enfranchisement of British women.
Day of death July 23, 1971
The temperature on July 23, 1971 was between 12.3 °C and 24.7 °C and averaged 18.5 °C. There was 6.0 mm of rain during 2.1 hours. There was 4.2 hours of sunshine (26%). The partly or heavily clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the south east. Source: KNMI
January 31 » The Winter Soldier Investigation, organized by the Vietnam Veterans Against the War to publicize war crimes and atrocities by Americans and allies in Vietnam, begins in Detroit.
March 7 » Sheikh Mujibur Rahman, political leader of then East Pakistan (present day-Bangladesh), delivers his historic 7th March speech in the Racecourse Field (Now Suhrawardy Udyan) in Dhaka.
May 30 » Mariner program: Mariner 9 is launched to map 70% of the surface, and to study temporal changes in the atmosphere and surface, of Mars.
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.
August 10 » The Society for American Baseball Research is founded in Cooperstown, New York.
August 14 » Bahrain declares independence as the State of Bahrain.
When copying data from this family tree, please include a reference to the origin: J Eijsermans, "Eijsermans family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijsermans/I242422.php : accessed February 25, 2026), "Petronella Antonia Kouwenberg (1903-1971)".
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