The temperature on February 9, 1915 was between 3.6 °C and 7.9 °C and averaged 4.8 °C. There was 0.5 mm of rain. There was 4.8 hours of sunshine (50%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the south-southeast. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
January 19 » German strategic bombing during World War I: German zeppelins bomb the towns of Great Yarmouth and King's Lynn in the United Kingdom killing at least 20 people, in the first major aerial bombardment of a civilian target.
January 26 » The Rocky Mountain National Park is established by an act of the U.S. Congress.
March 20 » Albert Einstein publishes his general theory of relativity.
April 18 » French pilot Roland Garros is shot down and glides to a landing on the German side of the lines during World War I.
August 15 » A story in New York World newspaper reveals that the Imperial German government had purchased excess phenol from Thomas Edison that could be used to make explosives for the war effort and diverted it to Bayer for aspirin production.
December 20 » World War I: The last Australian troops are evacuated from Gallipoli.
Day of marriage June 21, 1941
The temperature on June 21, 1941 was between 12.0 °C and 26.3 °C and averaged 20.0 °C. There was 15.1 hours of sunshine (90%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
April 16 » World War II: The Italian-German Tarigo convoy is attacked and destroyed by British ships.
June 2 » World War II: German paratroopers murder Greek civilians in the villages of Kondomari and Alikianos.
September 4 » World War II: A German submarine makes the first attack of the war against a United States warship, the USSGreer.
November 1 » American photographer Ansel Adams takes a picture of a moonrise over the town of Hernandez, New Mexico that would become one of the most famous images in the history of photography.
November 19 » World War II: Battle between HMAS Sydney and HSK Kormoran. The two ships sink each other off the coast of Western Australia, with the loss of 645 Australians and about 77 German seamen.
December 1 » World War II: Emperor Hirohito of Japan gives the final approval to initiate war against the United States.
Day of death May 31, 1995
The temperature on May 31, 1995 was between 10.6 °C and 19.5 °C and averaged 15.0 °C. There was -0.1 mm of rain. There was 6.5 hours of sunshine (40%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. Source: KNMI
In The Netherlands , there was from Monday, August 22, 1994 to Monday, August 3, 1998 the cabinet a href="https://nl.wikipedia.org/wiki/Kabinet-Kok_I" class="extern">Kok I, with W. Kok (PvdA) as prime minister.
January 30 » Workers from the National Institutes of Health announce the success of clinical trials testing the first preventive treatment for sickle-cell disease.
June 29 » The Sampoong Department Store collapses in the Seocho District of Seoul, South Korea, killing 501 and injuring 937.
September 6 » Cal Ripken, Jr. of the Baltimore Orioles plays in his 2,131st consecutive game, breaking a record that had stood for 56 years.
November 10 » In Nigeria, playwright and environmental activist Ken Saro-Wiwa, along with eight others from the Movement for the Survival of the Ogoni People (Mosop), are hanged by government forces.
November 13 » Mozambique becomes the first state to join the Commonwealth of Nations without having been part of the former British Empire.
December 20 » American Airlines Flight 965, a Boeing 757, crashes into a mountain 50km north of Cali, Colombia killing 159.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I412893.php : accessed January 31, 2026), "Geert Boertien (1915-1995)".
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