The temperature on September 15, 1904 was between 9.7 °C and 16.3 °C and averaged 13.1 °C. There was 0.7 hours of sunshine (5%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
January 8 » The Blackstone Library is dedicated, marking the beginning of the Chicago Public Library system.
February 8 » Aceh War: Dutch Colonial Army's Marechaussee regiment led by General G.C.E. van Daalen launch military campaign to capture Gayo Highland, Alas Highland, and Batak Highland in Dutch East Indies' Northern Sumatra region, which ends with genocide to Acehnese and Bataks people.
February 28 » S.L. Benfica is founded in Portugal.
May 5 » Pitching against the Philadelphia Athletics at the Huntington Avenue Grounds, Cy Young of the Boston Americans throws the first perfect game in the modern era of baseball.
August 23 » The automobile tire chain is patented.
November 16 » English engineer John Ambrose Fleming receives a patent for the thermionic valve (vacuum tube).
Day of death August 21, 1980
The temperature on August 21, 1980 was between 13.5 °C and 19.5 °C and averaged 16.5 °C. There was 3.5 mm of rain during 0.8 hours. There was 7.7 hours of sunshine (54%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. 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.
April 12 » Transbrasil Flight 303, a Boeing 727, crashes on approach to Hercílio Luz International Airport, in Florianópolis, Brazil. Fifty-five out of the 58 people on board are killed.
April 30 » The Iranian Embassy siege begins in London.
May 18 » Mount St. Helens erupts in Washington, United States, killing 57 people and causing $3billion in damage.
July 1 » "O Canada" officially becomes the national anthem of Canada.
August 19 » Saudia Flight 163, a Lockheed L-1011 TriStar burns after making an emergency landing at King Khalid International Airport in Riyadh, Saudi Arabia, killing 301 people.
August 26 » After John Birges plants a bomb at Harvey's Resort Hotel in Stateline, Nevada, in the United States, the FBI inadvertently detonates the bomb during its disarming.
When copying data from this family tree, please include a reference to the origin: J Eijsermans, "Eijsermans family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijsermans/I489239.php : accessed March 12, 2026), "Gertruda Martina Maria van Hoof (1904-1980)".
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