April 18 » The Greco-Turkish War is declared between Greece and the Ottoman Empire.
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.
August 21 » Oldsmobile, an American automobile manufacturer and marque, is founded.
December 6 » London becomes the world's first city to host licensed taxicabs.
December 9 » Activist Marguerite Durand founds the feminist daily newspaper La Fronde in Paris.
Day of marriage June 18, 1921
The temperature on June 18, 1921 was between 6.9 °C and 15.8 °C and averaged 12.3 °C. There was 5.2 hours of sunshine (31%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north. 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 British K-class submarine HMS K5 sinks in the English Channel; all 56 on board die.
March 17 » The Second Polish Republic adopts the March Constitution.
March 31 » The Royal Australian Air Force is formed.
September 7 » In Atlantic City, New Jersey, the first Miss America Pageant, a two-day event, is held.
October 26 » The Chicago Theatre opens.
October 29 » The Harvard University football team loses to Centre College, ending a 25-game winning streak. This is considered one of the biggest upsets in college football.
Day of death October 9, 1986
The temperature on October 9, 1986 was between 7.6 °C and 19.0 °C and averaged 12.7 °C. There was 5.7 hours of sunshine (51%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
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.
In The Netherlands , there was from Tuesday, November 4, 1986 to Tuesday, November 7, 1989 the cabinet Lubbers II, with Drs. R.F.M. Lubbers (CDA) as prime minister.
February 7 » Twenty-eight years of one-family rule end in Haiti, when President Jean-Claude Duvalier flees the Caribbean nation.
February 22 » Start of the People Power Revolution in the Philippines.
April 11 » FBI Miami Shootout: A gun battle in broad daylight in Dade County, Florida between two bank/armored car robbers and pursuing FBI agents. During the firefight, FBI agents Jerry L. Dove and Benjamin P. Grogan were killed, while five other agents were wounded. As a result, the popular .40 S&W cartridge was developed.
July 6 » Davis Phinney becomes the first American cyclist to win a road stage of the Tour de France.
November 3 » Iran–Contra affair: The Lebanese magazine Ash-Shiraa reports that the United States has been secretly selling weapons to Iran in order to secure the release of seven American hostages held by pro-Iranian groups in Lebanon.
November 5 » USSRentz, USSReeves and USSOldendorf visit Qingdao (Tsing Tao) China – the first US Naval visit to China since 1949.
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/I200738.php : accessed February 17, 2026), "Roelf Kruijer (1897-1986)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.