May 8 » The first games of the Italian football league system are played.
June 21 » The United States captures Guam from Spain. The few warning shots fired by the U.S. naval vessels are misinterpreted as salutes by the Spanish garrison, which was unaware that the two nations were at war.
July 4 » En route from New York to Le Havre, the SS La Bourgogne collides with another ship and sinks off the coast of Sable Island, with the loss of 549 lives.
August 11 » Spanish–American War: American troops enter the city of Mayagüez, Puerto Rico.
October 18 » The United States takes possession of Puerto Rico from Spain.
December 18 » Gaston de Chasseloup-Laubat sets the first officially recognized land speed record of 39.245mph (63.159km/h) in a Jeantaud electric car.
Day of marriage May 24, 1923
The temperature on May 24, 1923 was between 1.9 °C and 14.8 °C and averaged 8.5 °C. There was 8.9 hours of sunshine (55%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north. 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.
April 26 » The Duke of York weds Lady Elizabeth Bowes-Lyon at Westminster Abbey.
August 2 » Vice President Calvin Coolidge becomes U.S. President upon the death of President Warren G. Harding.
September 1 » The Great Kantō earthquake devastates Tokyo and Yokohama, killing about 105,000 people.
September 29 » The French Mandate for Syria and the Lebanon takes effect.
October 6 » The Turkish National Movement enters Constantinople.
Day of death September 20, 1966
The temperature on September 20, 1966 was between 4.4 °C and 20.8 °C and averaged 12.4 °C. There was 10.3 hours of sunshine (83%). The almost cloudless was. The average windspeed was 1 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
January 10 » Tashkent Declaration, a peace agreement between India and Pakistan signed that resolved the Indo-Pakistani War of 1965.
February 28 » A NASA T-38 Talon crashes into the McDonnell Aircraft factory while attempting a poor-visibility landing at Lambert Field, St. Louis, killing astronauts Elliot See and Charles Bassett.
April 21 » Rastafari movement: Haile Selassie of Ethiopia visits Jamaica, an event now celebrated as Grounation Day.
August 23 » Lunar Orbiter 1 takes the first photograph of Earth from orbit around the Moon.
November 4 » The Arno River floods Florence, Italy, to a maximum depth of 6.7m (22ft), leaving thousands homeless and destroying millions of masterpieces of art and rare books. Also Venice was submerged on the same day at its record all-time acqua alta of 194cm (76in).
When copying data from this family tree, please include a reference to the origin: J. Ham, "Family tree Ham", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ham/I69317.php : accessed February 3, 2026), "Harbert Jonkman (1898-1966)".
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