January 6 » Second Boer War: Having already besieged the fortress at Ladysmith, Boer forces attack it, but are driven back by British defenders.
January 23 » Second Boer War: The Battle of Spion Kop between the forces of the South African Republic and the Orange Free State and British forces ends in a British defeat.
February 27 » The British Labour Party is founded.
March 13 » British forces occupy Bloemfontein, Orange Free State, during the Second Boer War.
May 1 » The Scofield Mine disaster kills over 200 men in Scofield, Utah in what is to date the fifth-worst mining accident in United States history.
July 9 » The Federation of Australia is given royal assent.
Day of marriage October 30, 1920
The temperature on October 30, 1920 was between -2.8 °C and 7.9 °C and averaged 1.5 °C. There was 8.1 hours of sunshine (83%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-southeast. 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 16 » Zeta Phi Beta Sorority Incorporated was founded on the campus of Howard University.
August 31 » Polish–Soviet War: A decisive Polish victory in the Battle of Komarów.
November 15 » First assembly of the League of Nations is held in Geneva, Switzerland.
November 21 » Irish War of Independence: In Dublin, 31 people are killed in what became known as "Bloody Sunday".
November 28 » FIDAC (The Interallied Federation of War Veterans Organisations), the first international organization of war veterans is established in Paris, France
December 19 » King Constantine I is restored as King of the Hellenes after the death of his son Alexander of Greece and a plebiscite.
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/I177706.php : accessed February 21, 2026), "Jantje Jansen (1900-)".
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