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.
May 26 » Dracula, a Gothic horror novel by Irish author Bram Stoker, is published.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
July 11 » Salomon August Andrée leaves Spitsbergen to attempt to reach the North Pole by balloon. He later crashes and dies.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
September 12 » Tirah Campaign: In the Battle of Saragarhi, ten thousand Pashtun tribesmen suffer several hundred casualties while attacking 21 Sikh soldiers in British service.
Day of marriage August 11, 1921
The temperature on August 11, 1921 was between 12.0 °C and 20.3 °C and averaged 15.4 °C. There was 0.9 mm of rain. There was 1.9 hours of sunshine (13%). The average windspeed was 2 Bft (weak wind) and was prevailing from the 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 20 » The first Constitution of Turkey is adopted, making fundamental changes in the source and exercise of sovereignty by consecrating the principle of national sovereignty.
February 22 » After Russian forces under Baron Roman von Ungern-Sternberg drive the Chinese out, the Bogd Khan is reinstalled as the emperor of Mongolia.
March 19 » Irish War of Independence: One of the biggest engagements of the war takes place at Crossbarry, County Cork. About 100 Irish Republican Army (IRA) volunteers escape an attempt by over 1,300 British forces to encircle them.
March 24 » The 1921 Women's Olympiad begins in Monte Carlo, first international women's sports event.
October 8 » KDKA in Pittsburgh's Forbes Field conducts the first live broadcast of a football game.
November 11 » The Tomb of the Unknowns is dedicated by US President Warren G. Harding at Arlington National Cemetery.
Day of death January 9, 1982
The temperature on January 9, 1982 was between -11.8 °C and -5.6 °C and averaged -7.3 °C. There was -0.1 mm of rain. The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. 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.
February 2 » Hama massacre: The government of Syria attacks the town of Hama.
March 19 » Falklands War: Argentinian forces land on South Georgia Island, precipitating war with the United Kingdom.
March 30 » Space Shuttle program: STS-3 mission is completed with the landing of Columbia at White Sands Missile Range, New Mexico.
May 24 » Liberation of Khorramshahr: Iranians recapture of the port city of Khorramshahr from the Iraqis during the Iran–Iraq War.
June 27 » Space Shuttle Columbia launched from the Kennedy Space Center on the final research and development flight mission, STS-4.
July 20 » Hyde Park and Regent's Park bombings: The Provisional IRA detonates two bombs in Hyde Park and Regent's Park in central London, killing eight soldiers, wounding forty-seven people, and leading to the deaths of seven horses.
When copying data from this family tree, please include a reference to the origin: David Dirk Pilon, "Family tree Pilon", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-pilon/I547.php : accessed January 3, 2026), "Roelfina Pilon (1897-1982)".
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