The temperature on May 30, 1915 was between 4.2 °C and 13.1 °C and averaged 8.8 °C. There was 1.3 mm of rain. There was 3.5 hours of sunshine (21%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northwest. 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 12 » The United States House of Representatives rejects a proposal to require states to give women the right to vote.
January 19 » Georges Claude patents the neon discharge tube for use in advertising.
April 22 » The use of poison gas in World War I escalates when chlorine gas is released as a chemical weapon in the Second Battle of Ypres.
May 7 » World War I: German submarine U-20 sinks RMS Lusitania, killing 1,198 people, including 128 Americans. Public reaction to the sinking turns many former pro-Germans in the United States against the German Empire.
June 5 » Denmark amends its constitution to allow women's suffrage.
August 17 » A Category 4 hurricane hits Galveston, Texas with winds at 135 miles per hour (217km/h).
Day of marriage May 14, 1944
The temperature on May 14, 1944 was between 4.9 °C and 14.4 °C and averaged 8.9 °C. There was 5.5 mm of rain during 6.3 hours. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
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 22 » World War II: Operation Persecution is initiated: Allied forces land in the Hollandia (currently known as Jayapura) area of New Guinea.
August 2 » ASNOM: Birth of the Socialist Republic of Macedonia, celebrated as Day of the Republic in North Macedonia.
August 23 » World War II: King Michael of Romania dismisses the pro-Nazi government of Marshal Antonescu, who is arrested. Romania switches sides from the Axis to the Allies.
August 29 » World War II: Slovak National Uprising takes place as 60,000 Slovak troops turn against the Nazis.
November 7 » Soviet spy Richard Sorge, a half-Russian, half-German World War I veteran, is hanged by his Japanese captors along with 34 of his ring.
December 18 » World War II: Seventy-seven B-29 Superfortress and 200 other aircraft of U.S. Fourteenth Air Force bomb Hankow, China, a Japanese supply base.
Day of death July 18, 1980
The temperature on July 18, 1980 was between 12.8 °C and 18.9 °C and averaged 15.3 °C. There was 3.7 mm of rain during 2.8 hours. There was 0.2 hours of sunshine (1%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
January 29 » The Rubik's Cube makes its international debut at the Ideal Toy Corp. in Earl's Court, London.
March 18 » A Vostok-2M rocket at Plesetsk Cosmodrome Site 43 explodes during a fueling operation, killing 48 people.
March 21 » U.S. President Jimmy Carter announces a United States boycott of the 1980 Summer Olympics in Moscow to protest the Soviet–Afghan War.
April 2 » United States President Jimmy Carter signs the Crude Oil Windfall Profits Tax Act.
September 18 » Soyuz 38 carries two cosmonauts (including one Cuban) to the Salyut 6 space station.
December 24 » Witnesses report the first of several sightings of unexplained lights near RAF Woodbridge, in Rendlesham Forest, Suffolk, England, United Kingdom, an incident called "Britain's Roswell".
When copying data from this family tree, please include a reference to the origin: D. van der Werff-van der Mije, "Family tree Keur", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-keur/I698.php : accessed February 6, 2026), "Maarten Keur (1915-1980)".
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