July 24 » O. Henry is released from prison in Columbus, Ohio, after serving three years for embezzlement from a bank.
August 10 » The U.S. Steel recognition strike by the Amalgamated Association of Iron and Steel Workers begins.
August 14 » The first claimed powered flight, by Gustave Whitehead in his Number 21.
September 6 » Leon Czolgosz, an unemployed anarchist, shoots and fatally wounds US President William McKinley at the Pan-American Exposition in Buffalo, New York.
December 12 » Guglielmo Marconi receives the first transatlantic radio signal (the letter "S" [***] in Morse Code), at Signal Hill in St John's, Newfoundland.
Day of marriage May 30, 1923
The temperature on May 30, 1923 was between 6.5 °C and 16.6 °C and averaged 11.7 °C. There was 3.4 mm of rain. There was 0.9 hours of sunshine (6%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
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.
January 1 » Britain's Railways are grouped into the Big Four: LNER, GWR, SR, and LMS.
February 16 » Howard Carter unseals the burial chamber of Pharaoh Tutankhamun.
August 16 » The United Kingdom gives the name "Ross Dependency" to part of its claimed Antarctic territory and makes the Governor-General of the Dominion of New Zealand its administrator.
September 7 » The International Criminal Police Organization (INTERPOL) is formed.
September 29 » The British Mandate for Palestine takes effect, creating Mandatory Palestine.
November 8 » Beer Hall Putsch: In Munich, Adolf Hitler leads the Nazis in an unsuccessful attempt to overthrow the German government.
Day of death July 18, 1969
The temperature on July 18, 1969 was between 9.0 °C and 22.8 °C and averaged 16.3 °C. There was 7.0 hours of sunshine (43%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
January 16 » Soviet spacecraft Soyuz 4 and Soyuz 5 perform the first-ever docking of manned spacecraft in orbit, the first-ever transfer of crew from one space vehicle to another, and the only time such a transfer was accomplished with a space walk.
January 17 » Black Panther Party members Bunchy Carter and John Huggins are killed during a meeting in Campbell Hall on the campus of UCLA.
April 4 » Dr. Denton Cooley implants the first temporary artificial heart.
April 5 » Vietnam War: Massive antiwar demonstrations occur in many U.S. cities.
May 2 » The British ocean liner Queen Elizabeth 2 departs on her maiden voyage to New York City.
July 24 » Apollo program: Apollo 11 splashes down safely in the Pacific Ocean.
When copying data from this family tree, please include a reference to the origin: Hendrik de Graaf, "Family tree Plugboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plugboer/I15176.php : accessed February 27, 2026), "Cornelis Claij (1901-1969)".
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