April 30 » J. J. Thomson of the Cavendish Laboratory announces his discovery of the electron as a subatomic particle, over 1,800 times smaller than a proton (in the atomic nucleus), at a lecture at the Royal Institution in London.
July 26 » Anglo-Afghan War: The Pashtun fakir Saidullah leads an army of more than 10,000 to begin a siege of the British garrison in the Malakand Agency of the North West Frontier Province of India.
August 21 » Oldsmobile, an American automobile manufacturer and marque, is founded.
September 1 » The Tremont Street Subway in Boston opens, becoming the first underground rapid transit system in North America.
December 6 » London becomes the world's first city to host licensed taxicabs.
December 30 » The British Colony of Natal annexes Zululand.
Day of marriage April 20, 1918
The temperature on April 20, 1918 was between -3.6 °C and 9.8 °C and averaged 3.5 °C. There was 7.7 hours of sunshine (54%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
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 17 » Finnish Civil War: The first serious battles take place between the Red Guards and the White Guard.
May 9 » World War I: Germany repels Britain's second attempt to blockade the port of Ostend, Belgium.
August 17 » Bolshevik revolutionary leader Moisei Uritsky is assassinated.
September 29 » Germany's Supreme Army Command tells the Kaiser and the Chancellor to open negotiations for an armistice.
October 4 » World War I: An explosion kills more than 100 people and destroys a Shell Loading Plant in New Jersey.
November 7 » Kurt Eisner overthrows the Wittelsbach dynasty in the Kingdom of Bavaria.
Day of death April 30, 1982
The temperature on April 30, 1982 was between 1.1 °C and 9.5 °C and averaged 6.4 °C. There was 4.1 mm of rain during 7.9 hours. There was 1.5 hours of sunshine (10%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from Friday, September 11, 1981 to Saturday, May 29, 1982 the cabinet Van Agt II, with Mr. A.A.M. van Agt (CDA) as prime minister.
In The Netherlands , there was from Saturday, May 29, 1982 to Thursday, November 4, 1982 the cabinet Van Agt III, with Mr. A.A.M. van Agt (CDA) as prime minister.
In The Netherlands , there was from Thursday, November 4, 1982 to Monday, July 14, 1986 the cabinet Lubbers I, with Drs. R.F.M. Lubbers (CDA) as prime minister.
January 13 » Shortly after takeoff, Air Florida Flight 90, a Boeing 737 jet, crashes into Washington, D.C.'s 14th Street Bridge and falls into the Potomac River, killing 78 including four motorists.
January 28 » US Army general James L. Dozier is rescued by Italian anti-terrorism forces from captivity by the Red Brigades.
March 14 » The South African government bombs the headquarters of the African National Congress in London.
March 26 » A groundbreaking ceremony for the Vietnam Veterans Memorial is held in Washington, D.C.
June 3 » The Israeli ambassador to the United Kingdom, Shlomo Argov, is shot on a London street; he survives but is left paralysed.
September 16 » Lebanon War: The Sabra and Shatila massacre in Lebanon takes place.
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/I85218.php : accessed October 23, 2026), "Frouktje Spaan (1897-1982)".
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