February 4 » The Philippine–American War begins with the Battle of Manila.
March 4 » Cyclone Mahina sweeps in north of Cooktown, Queensland, with a 12 metres (39ft) wave that reaches up to 5 kilometres (3.1mi) inland, killing over 300.
March 30 » German Society of Chemistry issues an invitation to other national scientific organizations to appoint delegates to the International Committee on Atomic Weights.
May 8 » The Irish Literary Theatre in Dublin produced its first play.
June 12 » New Richmond tornado: The eighth deadliest tornado in U.S. history kills 117 people and injures around 200.
September 23 » The American Asiatic Squadron destroys a Filipino battery at the Battle of Olongapo.
Day of marriage May 5, 1923
The temperature on May 5, 1923 was between 12.3 °C and 28.3 °C and averaged 20.2 °C. There was 10.3 hours of sunshine (68%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. 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.
January 9 » Lithuanian residents of the Memel Territory rebel against the League of Nations' decision to leave the area as a mandated region under French control.
February 16 » Howard Carter unseals the burial chamber of Pharaoh Tutankhamun.
October 16 » The Walt Disney Company is founded.
October 31 » The first of 160 consecutive days of 100° Fahrenheit at Marble Bar, Western Australia.
November 9 » In Munich, Germany, police and government troops crush the Beer Hall Putsch in Bavaria. The failed coup is the work of the Nazis.
Day of death August 3, 1956
The temperature on August 3, 1956 was between 11.4 °C and 17.0 °C and averaged 14.0 °C. There was 4.5 mm of rain during 2.4 hours. There was 4.0 hours of sunshine (26%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
March 1 » Formation of the East German Nationale Volksarmee.
March 1 » The International Air Transport Association finalizes a draft of the Radiotelephony spelling alphabet for the International Civil Aviation Organization.
April 19 » Actress Grace Kelly marries Prince Rainier of Monaco.
May 20 » In Operation Redwing, the first United States airborne hydrogen bomb is dropped over Bikini Atoll in the Pacific Ocean.
October 8 » The New York Yankees's Don Larsen pitches the only perfect game in a World Series.
December 2 » The Granma reaches the shores of Cuba's Oriente Province. Fidel Castro, Che Guevara and 80 other members of the 26th of July Movement disembark to initiate the Cuban Revolution.
When copying data from this family tree, please include a reference to the origin: John en Jannie Anker, "Family tree Spijkerman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-spijkerman/I372.php : accessed January 5, 2026), "Gerrit Koops (1899-1956)".
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