January 4 » Utah is admitted as the 45th U.S. state.
January 18 » An X-ray generating machine is exhibited for the first time by H. L. Smith.
March 1 » Battle of Adwa: An Ethiopian army defeats an outnumbered Italian force, ending the First Italo-Ethiopian War.
March 1 » Henri Becquerel discovers radioactive decay.
March 2 » The Battle of Adwa: The Italian Army defeated by the Ethiopian Army in Adwa, Tigray, Ethiopia.
June 2 » Guglielmo Marconi applies for a patent for his wireless telegraph.
Day of marriage May 21, 1921
The temperature on May 21, 1921 was between 2.0 °C and 19.1 °C and averaged 12.6 °C. There was 12.7 hours of sunshine (80%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. 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.
May 8 » The creation of the Communist Party of Romania.
May 19 » The United States Congress passes the Emergency Quota Act establishing national quotas on immigration.
July 23 » The Communist Party of China (CPC) is established at the founding National Congress.
August 3 » Major League Baseball Commissioner Kenesaw Mountain Landis confirms the ban of the eight Chicago Black Sox, the day after they were acquitted by a Chicago court.
September 7 » In Atlantic City, New Jersey, the first Miss America Pageant, a two-day event, is held.
November 11 » The Tomb of the Unknowns is dedicated by US President Warren G. Harding at Arlington National Cemetery.
Day of death December 11, 1972
The temperature on December 11, 1972 was between 3.1 °C and 7.4 °C and averaged 5.3 °C. There was 0.7 mm of rain during 0.4 hours. There was 6.3 hours of sunshine (80%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from April 5, 1967 to Tuesday, July 6, 1971 the cabinet Biesheuvel I, with Mr. B.W. Biesheuvel (ARP) as prime minister.
In The Netherlands , there was from Thursday, July 20, 1972 to Friday, May 11, 1973 the cabinet Biesheuvel II, with Mr. B.W. Biesheuvel (ARP) as prime minister.
January 4 » Rose Heilbron becomes the first female judge to sit at the Old Bailey in London, UK.
February 10 » Ras Al Khaimah joins the United Arab Emirates, now making up seven emirates.
February 15 » José María Velasco Ibarra, serving as President of Ecuador for the fifth time, is overthrown by the military for the fourth time.
February 15 » Sound recordings are granted U.S. federal copyright protection for the first time.
July 11 » The first game of the World Chess Championship 1972 between challenger Bobby Fischer and defending champion Boris Spassky starts.
October 29 » The three surviving perpetrators of the Munich massacre are released from prison in exchange for the hostages of hijacked Lufthansa Flight 615.
When copying data from this family tree, please include a reference to the origin: Wicher Dam, "Dambomen, negen verschillende stambomen DAM", database, Genealogy Online (https://www.genealogieonline.nl/dambomen/I22652.php : accessed December 31, 2025), "Johannes van Roeden (1896-1972)".
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