February 16 » Iceland's first football club, Knattspyrnufélag Reykjavíkur, is founded.
March 27 » Emilio Aguinaldo leads Filipino forces for the only time during the Philippine–American War at the Battle of Marilao River.
July 26 » Ulises Heureaux, the 27th President of the Dominican Republic, is assassinated.
September 13 » Henry Bliss is the first person in the United States to be killed in an automobile accident.
November 2 » The Boers begin their 118-day siege of British-held Ladysmith during the Second Boer War.
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 10 » The Treaty of Versailles takes effect, officially ending World War I.
February 9 » Under the terms of the Svalbard Treaty, international diplomacy recognizes Norwegian sovereignty over Arctic archipelago Svalbard, and designates it as demilitarized.
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 11 » During the U.S. Republican National Convention in Chicago, U.S. Republican Party leaders gathered in a room at the Blackstone Hotel to come to a consensus on their candidate for the U.S. presidential election, leading the Associated Press to coin the political phrase "smoke-filled room".
August 16 » The congress of the Communist Party of Bukhara opens. The congress would call for armed revolution.
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 19 » A barge containing munitions destined for Pakistan explodes in the harbor at South Amboy, New Jersey, devastating the city.
June 28 » Korean War: Packed with its own refugees fleeing Seoul and leaving their 5th Division stranded, South Korean forces blow up the Hangang Bridge in an attempt to slow North Korea's offensive. The city falls later that day.
September 3 » "Nino" Farina becomes the first Formula One Drivers' champion after winning the 1950 Italian Grand Prix.
September 11 » Korean War: President Harry S. Truman approved military operations north of the 38 parallel.
September 24 » The eastern United States is covered by a thick haze from the Chinchaga fire in western Canada.
October 19 » Iran becomes the first country to accept technical assistance from the United States under the Point Four Program.
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 2, 2026), "JAN KOL (1899-1950)".
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