The temperature on July 17, 1904 was between 10.6 °C and 27.0 °C and averaged 19.8 °C. There was 13.9 hours of sunshine (86%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-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.
June 28 » The SSNorge runs aground on Hasselwood Rock in the North Atlantic 430 kilometres (270mi) northwest of Ireland. More than 635 people die during the sinking.
October 27 » The first underground New York City Subway line opens, later designated as the IRT Broadway–Seventh Avenue Line.
November 16 » English engineer John Ambrose Fleming receives a patent for the thermionic valve (vacuum tube).
Day of death November 22, 1967
The temperature on November 22, 1967 was between 1.9 °C and 8.1 °C and averaged 5.9 °C. There was 0.1 mm of rain. The almost completely overcast was. The average windspeed was 1 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
January 14 » The New York Times reports that the U.S. Army is conducting secret germ warfare experiments.
January 23 » Diplomatic relations between the Soviet Union and Ivory Coast are established.
June 17 » Nuclear weapons testing: China announces a successful test of its first thermonuclear weapon.
June 23 » Cold War: U.S. President Lyndon B. Johnson meets with Soviet Premier Alexei Kosygin in Glassboro, New Jersey for the three-day Glassboro Summit Conference.
November 19 » The establishment of TVB, the first wireless commercial television station in Hong Kong.
December 19 » Harold Holt, the Prime Minister of Australia, is officially presumed dead.
When copying data from this family tree, please include a reference to the origin: Hendrik de Graaf, "Family tree Plugboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plugboer/I20149.php : accessed January 27, 2026), "Cornelis Leendert van Dam (1904-1967)".
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