The temperature on June 9, 1914 was between 5.0 °C and 12.2 °C and averaged 9.6 °C. There was 6.8 mm of rain. There was 0.8 hours of sunshine (5%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-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.
May 25 » The House of Commons of the United Kingdom passes the Home Rule Bill for devolution in Ireland.
August 5 » World War I: The German minelayer SSKönigin Luise lays a minefield about 40 miles (64km) off the Thames Estuary (Lowestoft). She is intercepted and sunk by the British light-cruiser HMSAmphion.
August 15 » World War I: Beginning of the Battle of Cer, the first Allied victory of World War I.
August 15 » World War I: The First Russian Army, led by Paul von Rennenkampf, enters East Prussia.
September 3 » William, Prince of Albania leaves the country after just six months due to opposition to his rule.
October 29 » Ottoman entry into World War I.
Day of death July 15, 1969
The temperature on July 15, 1969 was between 12.0 °C and 26.8 °C and averaged 20.2 °C. There was 14.7 hours of sunshine (90%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-southeast. Source: KNMI
June 23 » IBM announces that effective January 1970 it will price its software and services separately from hardware thus creating the modern software industry.
August 10 » A day after murdering Sharon Tate and four others, members of Charles Manson's cult kill Leno and Rosemary LaBianca.
August 11 » The Apollo 11 astronauts are released from a three-week quarantine following their liftoff from the moon.
September 9 » In Canada, the Official Languages Act comes into force, making French equal to English throughout the Federal government.
October 21 » The 1969 Somali coup d'état establishes a Marxist–Leninist administration.
November 21 » The first permanent ARPANET link is established between UCLA and SRI.
Day of burial July 19, 1969
The temperature on July 19, 1969 was between 8.6 °C and 23.9 °C and averaged 17.8 °C. There was 0.1 mm of rain during 0.1 hours. There was 8.6 hours of sunshine (53%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
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/I1133.php : accessed February 3, 2026), "Jan Pieter Knippenberg (1914-1969)".
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