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 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.
September 1 » The Tremont Street Subway in Boston opens, becoming the first underground rapid transit system in North America.
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
December 9 » Activist Marguerite Durand founds the feminist daily newspaper La Fronde in Paris.
Day of marriage March 9, 1922
The temperature on March 9, 1922 was between 2.7 °C and 9.7 °C and averaged 6.1 °C. There was 0.2 mm of rain. There was 3.4 hours of sunshine (30%). The average windspeed was 4 Bft (moderate breeze) 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.
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
June 1 » The Royal Ulster Constabulary is founded.
August 30 » Battle of Dumlupınar: The final battle in the Greco-Turkish War ("Turkish War of Independence").
October 29 » King Victor Emmanuel III of Italy appoints Benito Mussolini as Prime Minister.
October 31 » Benito Mussolini is made Prime Minister of Italy
December 27 » Japanese aircraft carrierHōshō becomes the first purpose built aircraft carrier to be commissioned in the world.
December 30 » The Union of Soviet Socialist Republics is formed.
Day of death February 14, 1958
The temperature on February 14, 1958 was between 11.0 °C and 13.7 °C and averaged 12.0 °C. There was 0.7 hours of sunshine (7%). The partly or heavily clouded was. The average windspeed was 5 Bft (very strong wind) and was prevailing from the southwest. Source: KNMI
April 4 » The CND peace symbol is displayed in public for the first time in London.
April 13 » American pianist Van Cliburn is awarded first prize at the inaugural International Tchaikovsky Competition in Moscow.
May 13 » Ben Carlin becomes the first (and only) person to circumnavigate the world by amphibious vehicle, having travelled over 17,000 kilometres (11,000mi) by sea and 62,000 kilometres (39,000mi) by land during a ten-year journey.
July 29 » U.S. President Dwight D. Eisenhower signs into law the National Aeronautics and Space Act, which creates the National Aeronautics and Space Administration (NASA).
December 5 » Subscriber Trunk Dialling (STD) is inaugurated in the United Kingdom by Queen Elizabeth II when she speaks to the Lord Provost in a call from Bristol to Edinburgh.
December 30 » The Guatemalan Air Force sinks several Mexican fishing boats alleged to have breached maritime borders, killing three and sparking international tension.
Day of burial February 19, 1958
The temperature on February 19, 1958 was between -3.2 °C and 5.0 °C and averaged 1.8 °C. There was 4.2 mm of rain during 7.1 hours. There was 0.7 hours of sunshine (7%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
January 18 » Willie O'Ree, the first Black Canadian National Hockey League player, makes his NHL debut with the Boston Bruins.
March 3 » Nuri al-Said becomes Prime Minister of Iraq for the eighth time.
April 4 » The CND peace symbol is displayed in public for the first time in London.
May 13 » During a visit to Caracas, Venezuela, Vice President Richard Nixon's car is attacked by anti-American demonstrators.
November 28 » First successful flight of SM-65 Atlas; the first operational intercontinental ballistic missile (ICBM), developed by the United States and the first member of the Atlas rocket family.
December 18 » Project SCORE, the world's first communications satellite, is launched.
When copying data from this family tree, please include a reference to the origin: Tijs van den Brink, "Parentele of Bernt Killen", database, Genealogy Online (https://www.genealogieonline.nl/bernt-killen/I29808.php : accessed January 7, 2026), "Barend Wallet (1897-1958)".
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