January 23 » The Malolos Constitution is inaugurated, establishing the First Philippine Republic. Emilio Aguinaldo is sworn in as its first President.
March 30 » German Society of Chemistry issues an invitation to other national scientific organizations to appoint delegates to the International Committee on Atomic Weights.
March 31 » Malolos, capital of the First Philippine Republic, is captured by American forces.
April 18 » The St. Andrew's Ambulance Association is granted a royal charter by Queen Victoria.
June 12 » New Richmond tornado: The eighth deadliest tornado in U.S. history kills 117 people and injures around 200.
December 2 » Philippine–American War: The Battle of Tirad Pass, termed "The Filipino Thermopylae", is fought.
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.
March 12 » The Kapp Putsch begins when the Marinebrigade Ehrhardt is ordered to march on Berlin.
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 11 » The Latvian–Soviet Peace Treaty, which relinquished Russia's authority and pretenses to Latvia, is signed, ending the Latvian War of Independence.
August 19 » The Tambov Rebellion breaks out, in response to the Bolshevik policy of Prodrazvyorstka.
August 20 » The National Football League is organized as the American Professional Football Conference in Canton, Ohio
September 1 » The Fountain of Time opens as a tribute to the 100 years of peace between the United States and Great Britain following the Treaty of Ghent.
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).
May 29 » The St. Roch, the first ship to circumnavigate North America, arrives in Halifax, Nova Scotia, Canada.
August 18 » Julien Lahaut, the chairman of the Communist Party of Belgium is assassinated by far-right elements.
September 26 » Korean War: United Nations troops recapture Seoul from North Korean forces.
November 1 » Pope Pius XII claims papal infallibility when he formally defines the dogma of the Assumption of Mary.
November 5 » Korean War: British and Australian forces from the 27th British Commonwealth Brigade successfully halted the advancing Chinese 117th Division during the Battle of Pakchon.
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 December 25, 2025), "JAN KOL (1899-1950)".
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