The temperature on May 20, 1917 was between 10.2 °C and 26.0 °C and averaged 19.0 °C. There was 12.2 hours of sunshine (77%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. 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.
April 9 » World War I: The Battle of Arras: The battle begins with Canadian Corps executing a massive assault on Vimy Ridge.
May 13 » Three children report the first apparition of Our Lady of Fátima in Fátima, Portugal.
May 18 » World War I: The Selective Service Act of 1917 is passed, giving the President of the United States the power of conscription.
July 6 » World War I: Arabian troops led by T. E. Lawrence ("Lawrence of Arabia") and Auda ibu Tayi capture Aqaba from the Ottoman Empire during the Arab Revolt.
November 20 » World War I: Battle of Cambrai begins: British forces make early progress in an attack on German positions but are later pushed back.
December 7 » World War I: The United States declares war on Austria-Hungary.
Day of marriage February 28, 1942
The temperature on February 28, 1942 was between -8.7 °C and 2.8 °C and averaged -1.0 °C. There was 5.3 hours of sunshine (49%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. 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.
February 8 » World War II: Dutch Colonial Army General Destruction Unit (AVC, Algemene Vernielings Corps) burns Banjarmasin, South Borneo to avoid Japanese capture.
March 18 » The War Relocation Authority is established in the United States to take Japanese Americans into custody.
May 4 » World War II: The Battle of the Coral Sea begins with an attack by aircraft from the United States aircraft carrier USSYorktown on Japanese naval forces at Tulagi Island in the Solomon Islands. The Japanese forces had invaded Tulagi the day before.
May 27 » World War II: In Operation Anthropoid, Reinhard Heydrich is fatally wounded in Prague; he dies of his injuries eight days later.
July 1 » The Australian Federal Government becomes the sole collector of income tax in Australia as State Income Tax is abolished.
November 10 » World War II: Germany invades Vichy France following French Admiral François Darlan's agreement to an armistice with the Allies in North Africa.
Day of death March 20, 1981
The temperature on March 20, 1981 was between 6.1 °C and 12.1 °C and averaged 8.7 °C. There was 7.1 hours of sunshine (59%). The partly 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.
In The Netherlands , there was from Friday, September 11, 1981 to Saturday, May 29, 1982 the cabinet Van Agt II, with Mr. A.A.M. van Agt (CDA) as prime minister.
January 17 » President of the Philippines Ferdinand Marcos lifts martial law eight years and five months after declaring it.
January 28 » Ronald Reagan lifts remaining domestic petroleum price and allocation controls in the United States helping to end the 1979 energy crisis and begin the 1980s oil glut.
February 13 » A series of sewer explosions destroys more than two miles of streets in Louisville, Kentucky.
April 12 » The first launch of a Space Shuttle (Columbia) takes place: The STS-1 mission.
August 10 » Murder of Adam Walsh: The head of John Walsh's son is found. This inspires the creation of the television series America's Most Wanted and the National Center for Missing & Exploited Children.
October 27 » Cold War: The Soviet submarine S-363 runs aground on the east coast of Sweden.
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/I236332.php : accessed March 1, 2026), "Evert Jan Harzevoort (1917-1981)".
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