The temperature on January 20, 1918 was between 9.1 °C and 11.2 °C and averaged 10.1 °C. The average windspeed was 5 Bft (very strong wind) and was prevailing from the south. 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.
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 1 » Russia adopts the Gregorian calendar.
February 24 » Estonian Declaration of Independence.
March 31 » Daylight saving time goes into effect in the United States for the first time.
July 26 » Emmy Noether's paper, which became known as Noether's theorem was presented at Göttingen, Germany, from which conservation laws are deduced for symmetries of angular momentum, linear momentum, and energy.
November 4 » World War I: The Armistice of Villa Giusti between Italy and Austria-Hungary is implemented.
December 14 » Portuguese President Sidónio Pais is assassinated.
Day of death April 17, 2001
The temperature on April 17, 2001 was between 2.7 °C and 9.2 °C and averaged 6.1 °C. There was 0.2 mm of rain during 0.4 hours. There was 1.0 hours of sunshine (7%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
May 29 » The U.S. Supreme Court rules that the disabled golfer Casey Martin can use a cart to ride in tournaments.
June 5 » Tropical Storm Allison makes landfall on the upper-Texas coastline as a strong tropical storm and dumps large amounts of rain over Houston. The storm causes $5.5billion in damages, making Allison the second costliest tropical storm in U.S. history.
July 17 » Concorde is brought back into service nearly a year after the July 2000 crash.
September 14 » Historic National Prayer Service held at Washington National Cathedral for victims of the September 11 attacks. A similar service is held in Canada on Parliament Hill, the largest vigil ever held in the nation's capital.
September 20 » In an address to a joint session of Congress and the American people, U.S. President George W. Bush declares a "War on Terror".
November 30 » Gary Ridgway is apprehended and charged with four murders as the Green River Killer.
Day of burial April 21, 2001
The temperature on April 21, 2001 was between 0.1 °C and 11.6 °C and averaged 5.7 °C. There was 8.8 hours of sunshine (62%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
February 18 » FBI agent Robert Hanssen is arrested for spying for the Soviet Union. He is ultimately convicted and sentenced to life imprisonment.
May 9 » In Ghana, 129 football fans die in what became known as the Accra Sports Stadium disaster. The deaths are caused by a stampede (caused by the firing of tear gas by police personnel at the stadium) that followed a controversial decision by the referee.
September 2 » The adult-oriented television block Adult Swim debuts on Cartoon Network.
September 13 » Civilian aircraft traffic resumes in the United States after the September 11 attacks.
November 23 » The Convention on Cybercrime is signed in Budapest, Hungary.
December 22 » Richard Reid attempts to destroy a passenger airliner by igniting explosives hidden in his shoes aboard American Airlines Flight 63.
When copying data from this family tree, please include a reference to the origin: Tijs van den Brink, "Parentele of Geurt Jacobs", database, Genealogy Online (https://www.genealogieonline.nl/geurt-jacobs/I30536.php : accessed February 6, 2026), "Petrus Johannes Ligtermoet (1918-2001)".
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