March 6 » Bayer registers "Aspirin" as a trademark.
March 27 » Emilio Aguinaldo leads Filipino forces for the only time during the Philippine–American War at the Battle of Marilao River.
May 30 » Pearl Hart, a female outlaw of the Old West, robs a stage coach 30 miles southeast of Globe, Arizona.
July 26 » Ulises Heureaux, the 27th President of the Dominican Republic, is assassinated.
December 2 » Philippine–American War: The Battle of Tirad Pass, termed "The Filipino Thermopylae", is fought.
Day of marriage May 4, 1921
The temperature on May 4, 1921 was between -2.6 °C and 9.9 °C and averaged 4.3 °C. There was 0.3 mm of rain. There was 1.1 hours of sunshine (7%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west. 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.
February 15 » Kingdom of Romania establishes its legation in Helsinki.
April 2 » The Autonomous Government of Khorasan, a military government encompassing the modern state of Iran, is established.
July 11 » A truce in the Irish War of Independence comes into effect.
October 8 » KDKA in Pittsburgh's Forbes Field conducts the first live broadcast of a football game.
October 29 » The Harvard University football team loses to Centre College, ending a 25-game winning streak. This is considered one of the biggest upsets in college football.
October 29 » United States: Second trial of Sacco and Vanzetti in Boston, Massachusetts.
Day of death July 9, 1966
The temperature on July 9, 1966 was between 14.3 °C and 23.0 °C and averaged 18.2 °C. There was 0.4 mm of rain during 0.4 hours. There was 2.6 hours of sunshine (16%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
February 28 » A NASA T-38 Talon crashes into the McDonnell Aircraft factory while attempting a poor-visibility landing at Lambert Field, St. Louis, killing astronauts Elliot See and Charles Bassett.
March 4 » A Canadian Pacific Air Lines DC-8-43 explodes on landing at Tokyo International Airport, killing 64 people.
July 6 » Malawi becomes a republic, with Hastings Banda as its first President.
July 15 » Vietnam War: The United States and South Vietnam begin Operation Hastings to push the North Vietnamese out of the Vietnamese Demilitarized Zone.
August 23 » Lunar Orbiter 1 takes the first photograph of Earth from orbit around the Moon.
November 8 » U.S. President Lyndon B. Johnson signs into law an antitrust exemption allowing the National Football League to merge with the upstart American Football League.
When copying data from this family tree, please include a reference to the origin: Hans Dunning, "Family tree Dunning", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-dunning/R6296.php : accessed March 16, 2026), "Neeltje de Koning (1899-1966)".
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