The temperature on September 11, 1917 was between 5.1 °C and 20.8 °C and averaged 13.4 °C. There was 11.0 hours of sunshine (85%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-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.
March 16 » World War I: A German auxiliary cruiser is sunk in the Action of 16 March 1917.
June 7 » World War I: Battle of Messines: Allied soldiers detonate a series of mines underneath German trenches at Messines Ridge, killing 10,000 German troops.
October 15 » World War I: Dutch dancer Mata Hari is executed by France for espionage.
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.
November 24 » In Milwaukee, nine members of the Milwaukee Police Department are killed by a bomb, the most deaths in a single event in U.S. police history until the September 11 attacks in 2001.
December 20 » Cheka, the first Soviet secret police force, is founded.
Day of death April 15, 1997
The temperature on April 15, 1997 was between 3.2 °C and 10.2 °C and averaged 6.7 °C. There was -0.1 mm of rain. There was 6.4 hours of sunshine (46%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) 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 23 » Madeleine Albright becomes the first woman to serve as United States Secretary of State.
May 19 » The Sierra Gorda biosphere, the most ecologically diverse region in Mexico, is established as a result of grassroots efforts.
May 25 » A military coup in Sierra Leone replaces President Ahmad Tejan Kabbah with Major Johnny Paul Koroma.
July 1 » China resumes sovereignty over the city-state of Hong Kong, ending 156 years of British colonial rule. The handover ceremony is attended by British Prime Minister Tony Blair, Charles, Prince of Wales, Chinese President Jiang Zemin, and U.S. Secretary of State Madeleine Albright.
September 18 » The Anti-Personnel Mine Ban Convention is adopted.
October 15 » The Cassini probe launches from Cape Canaveral on its way to Saturn.
When copying data from this family tree, please include a reference to the origin: J. Ham, "Family tree Ham", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ham/I7514.php : accessed January 29, 2026), "Hendrikus Gijsbertus van Silfhout (1917-1997)".
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