January 17 » El Yunque National Forest in Puerto Rico becomes part of the United States National Forest System as the Luquillo Forest Reserve.
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 11 » A group of Serbian officers stormed the royal palace and assassinated King Alexander Obrenović and his wife, Queen Draga.
June 16 » The Ford Motor Company is incorporated.
July 4 » The Philippine–American War is officially concluded.
December 30 » A fire at the Iroquois Theater in Chicago, Illinois kills at least 605.
Day of marriage April 2, 1921
The temperature on April 2, 1921 was between 4.8 °C and 17.3 °C and averaged 9.9 °C. There was 6.4 hours of sunshine (49%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. 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.
January 20 » The first Constitution of Turkey is adopted, making fundamental changes in the source and exercise of sovereignty by consecrating the principle of national sovereignty.
February 25 » Georgian capital Tbilisi falls to the invading Russian forces after heavy fighting and the Russians declare the Georgian Soviet Socialist Republic.
July 2 » World War I: U.S. President Warren G. Harding signs the Knox–Porter Resolution formally ending the war between the United States and Germany.
September 5 » Roscoe "Fatty" Arbuckle party in San Francisco ends with the death of the young actress Virginia Rappe: One of the first scandals of the Hollywood community.
September 7 » The Legion of Mary, the largest apostolic organization of lay people in the Catholic Church, is founded in Dublin, Ireland.
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.
Day of death April 18, 1960
The temperature on April 18, 1960 was between 2.5 °C and 12.0 °C and averaged 7.3 °C. There was 0.5 mm of rain during 1.2 hours. There was 5.1 hours of sunshine (36%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
January 21 » Avianca Flight 671 crashes at Montego Bay, Jamaica airport, killing 37 people.
June 19 » The first NASCAR race was held at Charlotte Motor Speedway.
June 25 » Cold War: Two cryptographers working for the United States National Security Agency left for vacation to Mexico, and from there defected to the Soviet Union.
June 30 » Belgian Congo gains independence as Republic of the Congo (Léopoldville).
July 20 » The Polaris missile is successfully launched from a submarine, the USSGeorge Washington, for the first time.
October 1 » Nigeria gains independence from the United Kingdom.
When copying data from this family tree, please include a reference to the origin: Leen Schaap, "Database Schaap", database, Genealogy Online (https://www.genealogieonline.nl/database-schaap/I1853.php : accessed December 25, 2025), "Cilia van Buren (1903-1960)".
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