The temperature on July 22, 1884 was about 20.9 °C. The air pressure was 3 kgf/m2 and came mainly from the west-northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 60%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
March 13 » The Siege of Khartoum begins. It lasts until January 26, 1885.
May 1 » The Federation of Organized Trades and Labor Unions demands the eight-hour work day in the United States.
June 16 » The first purpose-built roller coaster, LaMarcus Adna Thompson's "Switchback Railway", opens in New York's Coney Island amusement park.
October 6 » The Naval War College of the United States is founded in Rhode Island.
October 13 » The International Meridian Conference establishes the meridian of the Greenwich Observatory as the prime meridian.
October 14 » George Eastman receives a U.S. Government patent on his new paper-strip photographic film.
Day of marriage May 13, 1920
The temperature on May 13, 1920 was between 7.4 °C and 16.2 °C and averaged 12.4 °C. There was 0.1 mm of rain. There was 4.8 hours of sunshine (31%). 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.
February 24 » Nancy Astor becomes the first woman to speak in the House of Commons of the United Kingdom following her election as a Member of Parliament (MP) three months earlier.
May 7 » Kiev Offensive: Polish troops led by Józef Piłsudski and Edward Rydz-Śmigły and assisted by a symbolic Ukrainian force capture Kiev only to be driven out by the Red Army counter-offensive a month later.
July 20 » The Greek Army takes control of Silivri after Greece is awarded the city by the Paris Peace Conference; by 1923 Greece effectively lost control to the Turks.
October 30 » The Communist Party of Australia is founded in Sydney.
November 2 » In the United States, KDKA of Pittsburgh starts broadcasting as the first commercial radio station. The first broadcast is the result of the 1920 United States presidential election.
December 24 » Gabriele D'Annunzio surrendered the Italian Regency of Carnaro in the city of Fiume to Italian armed forces.
Day of death October 24, 1961
The temperature on October 24, 1961 was between 6.6 °C and 16.7 °C and averaged 12.0 °C. There was 21.0 mm of rain during 7.5 hours. There was 0.4 hours of sunshine (4%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
February 16 » Explorer program: Explorer 9 (S-56a) is launched.
May 1 » The Prime Minister of Cuba, Fidel Castro, proclaims Cuba a socialist nation and abolishes elections.
May 28 » Peter Benenson's article The Forgotten Prisoners is published in several internationally read newspapers. This will later be thought of as the founding of the human rights organization Amnesty International.
July 4 » On its maiden voyage, the Soviet nuclear-powered submarine K-19 suffers a complete loss of coolant to its reactor. The crew are able to effect repairs, but 22 of them die of radiation poisoning over the following two years.
July 25 » Cold War: In a speech John F. Kennedy emphasizes that any attack on Berlin is an attack on NATO.
September 1 » The Eritrean War of Independence officially begins with the shooting of Ethiopian police by Hamid Idris Awate.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I55851.php : accessed February 16, 2026), "Hendrikjen Jansma (1884-1961)".
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