The temperature on July 16, 1917 was between 11.8 °C and 20.2 °C and averaged 15.8 °C. There was 8.6 hours of sunshine (53%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. 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 » Silvertown explosion: A blast at a munitions factory in London kills 73 and injures over 400. The resulting fire causes over £2,000,000 worth of damage.
February 3 » First World War: The American entry into World War I begins when diplomatic relations with Germany are severed due to its unrestricted submarine warfare.
April 12 » World War I: Canadian forces successfully complete the taking of Vimy Ridge from the Germans.
May 21 » The Imperial War Graves Commission is established through royal charter to mark, record, and maintain the graves and places of commemoration of the British Empire's military forces.
June 26 » World War I: The American Expeditionary Forces begin to arrive in France. They will first enter combat four months later.
August 6 » World War I: Battle of Mărășești between the Romanian and German armies begins.
Day of death July 23, 1976
The temperature on July 23, 1976 was between 8.5 °C and 21.9 °C and averaged 16.4 °C. There was -0.1 mm of rain. There was 9.7 hours of sunshine (61%). The partly clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
March 30 » Israeli-Palestinian conflict: in the first organized response against Israeli policies by a Palestinian collective since 1948, Palestinians create the first Land Day.
August 12 » Between 1,000 and 3,500 Palestinians are killed in the Tel al-Zaatar massacre, one of the bloodiest events of the Lebanese Civil War.
September 19 » Two Imperial Iranian Air Force F-4 Phantom II jets fly out to investigate an unidentified flying object, when both independently lose instrumentation and communications as they approach, only to have them restored upon withdrawal.
October 13 » The first electron micrograph of an Ebola virus is taken at the Centers for Disease Control and Prevention by Dr. F. A. Murphy.
November 15 » René Lévesque and the Parti Québécois take power to become the first Quebec government of the 20th century clearly in favor of independence.
December 3 » An assassination attempt is made on Bob Marley in Kingston, Jamaica just two days before the "Smile Jamaica", a free concert.
When copying data from this family tree, please include a reference to the origin: Van Knippenberg, "Family tree Van Knippenberg", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-knippenberg/I4159.php : accessed January 24, 2026), "Johannes Fredericus Knippenberg (1917-1976)".
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