January 17 » The United States takes possession of Wake Island in the Pacific Ocean.
February 14 » Voting machines are approved by the U.S. Congress for use in federal elections.
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.
October 11 » The Second Boer War erupts in South Africa between the British-ruled Cape Colony, and the Boer-ruled Transvaal and Orange Free State.
November 28 » The Second Boer War: a British column is engaged by Boer forces at the Battle of Modder River; although the Boers withdraw, the British suffer heavy casualties.
Day of marriage June 30, 1920
The temperature on June 30, 1920 was between 9.8 °C and 20.6 °C and averaged 16.5 °C. There was 4.3 mm of rain. There was 9.4 hours of sunshine (56%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. 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 13 » The Reichstag Bloodbath of January 13, 1920, the bloodiest demonstration in German history.
April 15 » Two security guards are murdered during a robbery in South Braintree, Massachusetts. Anarchists Sacco and Vanzetti would be convicted of and executed for the crime, amid much controversy.
June 15 » Following the 1920 Schleswig plebiscites, Northern Schleswig is transferred from Germany to Denmark.
August 10 » World War I: Ottoman sultan Mehmed VI's representatives sign the Treaty of Sèvres that divides up the Ottoman Empire between the Allies.
August 16 » The congress of the Communist Party of Bukhara opens. The congress would call for armed revolution.
December 19 » King Constantine I is restored as King of the Hellenes after the death of his son Alexander of Greece and a plebiscite.
Day of death June 25, 1950
The temperature on June 25, 1950 was between 11.2 °C and 18.7 °C and averaged 14.8 °C. There was 6.2 mm of rain during 3.6 hours. There was 2.7 hours of sunshine (16%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
January 31 » Cold War: U.S. President Harry S. Truman announces a program to develop the hydrogen bomb.
June 24 » Apartheid: In South Africa, the Group Areas Act is passed, formally segregating races.
August 18 » Julien Lahaut, the chairman of the Communist Party of Belgium is assassinated by far-right elements.
October 7 » Mother Teresa establishes the Missionaries of Charity.
November 13 » General Carlos Delgado Chalbaud, President of Venezuela, is assassinated in Caracas.
November 26 » Korean War: Troops from the People's Republic of China launch a massive counterattack in North Korea against South Korean and United Nations forces (Battle of the Ch'ongch'on River and Battle of Chosin Reservoir), ending any hopes of a quick end to the conflict.
When copying data from this family tree, please include a reference to the origin: Sim Mostert, "Genealogy Pot en Smit", database, Genealogy Online (https://www.genealogieonline.nl/genealogie_pot_smit/I5328.php : accessed October 9, 2026), "JAN KOL (1899-1950)".
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