April 20 » Pierre and Marie Curie refine radium chloride.
May 20 » Cuba gains independence from the United States. Tomás Estrada Palma becomes the country's first President.
June 24 » King Edward VII of the United Kingdom develops appendicitis, delaying his coronation.
October 24 » Guatemala's Santa María Volcano begins to erupt, becoming the third-largest eruption of the 20th century.
November 21 » The Philadelphia Football Athletics defeated the Kanaweola Athletic Club of Elmira, New York, 39–0, in the first ever professional American football night game.
December 10 » The opening of the reservoir of the Aswan Dam in Egypt.
Day of marriage January 5, 1922
The temperature on January 5, 1922 was between -2.2 °C and 3.8 °C and averaged 0.4 °C. There was 0.1 mm of rain. There was 3.1 hours of sunshine (39%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. 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.
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
April 24 » The first segment of the Imperial Wireless Chain providing wireless telegraphy between Leafield in Oxfordshire, England, and Cairo, Egypt, comes into operation.
October 19 » British Conservative MPs vote to terminate the coalition government with the Liberal Party.
October 31 » Benito Mussolini is made Prime Minister of Italy
November 1 » Abolition of the Ottoman sultanate: The last sultan of the Ottoman Empire, Mehmed VI, abdicates.
November 21 » Rebecca Latimer Felton of Georgia takes the oath of office, becoming the first female United States Senator.
November 26 » Howard Carter and Lord Carnarvon become the first people to enter the tomb of Pharaoh Tutankhamun in over 3000 years.
Day of death May 30, 1974
The temperature on May 30, 1974 was between 0.6 °C and 16.6 °C and averaged 10.7 °C. There was 13.0 hours of sunshine (80%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
March 5 » Yom Kippur War: Israeli forces withdraw from the west bank of the Suez Canal.
March 9 » The Mars 7 Flyby bus releases the descent module too early, missing Mars.
June 26 » The Universal Product Code is scanned for the first time to sell a package of Wrigley's chewing gum at the Marsh Supermarket in Troy, Ohio.
August 5 » Vietnam War: The U.S. Congress places a $1billion limit on military aid to South Vietnam.
September 12 » Juventude Africana Amílcar Cabral is founded in Guinea-Bissau.
October 8 » Franklin National Bank collapses due to fraud and mismanagement; at the time it is the largest bank failure in the history of the United States.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I375366.php : accessed January 23, 2026), "Geertje de Groot (1902-1974)".
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