The temperature on February 17, 1880 was about 8.9 °C. There was 2 mm of rain. The air pressure was 18 kgf/m2 and came mainly from the south-southeast. The airpressure was 74 cm mercury. The atmospheric humidity was 86%. Source: KNMI
In The Netherlands , there was from August 20, 1879 to April 23, 1883 the cabinet Van Lijnden van Sandenburg, with Mr. C.Th. baron Van Lijnden van Sandenburg (conservatief-AR) as prime minister.
January 27 » Thomas Edison receives a patent for his incandescent lamp.
June 24 » First performance of O Canada at the Congrès national des Canadiens-Français. The song would later become the national anthem of Canada.
August 14 » Construction of Cologne Cathedral, the most famous landmark in Cologne, Germany, is completed.
September 16 » The Cornell Daily Sun prints its first issue in Ithaca, New York. The Sun is the United States' oldest, continuously-independent college daily.
November 11 » Australian bushranger Ned Kelly is hanged at Melbourne Gaol.
December 16 » Outbreak of the First Boer War between the Boer South African Republic and the British Empire.
Day of death July 23, 1969
The temperature on July 23, 1969 was between 15.0 °C and 31.1 °C and averaged 24.1 °C. There was 11.8 hours of sunshine (74%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east-southeast. Source: KNMI
January 25 » Brazilian Army captain Carlos Lamarca deserts in order to fight against the military dictatorship, taking with him ten machine guns and 63 rifles.
March 19 » The 385-metre-tall (1,263ft) TV-mast at Emley Moor transmitting station, United Kingdom, collapses due to ice build-up.
May 13 » May 13 Incident involving sectarian violence in Kuala Lumpur, Malaysia.
July 25 » Vietnam War: U.S. President Richard Nixon declares the Nixon Doctrine, stating that the United States now expects its Asian allies to take care of their own military defense. This is the start of the "Vietnamization" of the war.
November 3 » Vietnam War: U.S. President Richard M. Nixon addresses the nation on television and radio, asking the "silent majority" to join him in solidarity on the Vietnam War effort and to support his policies.
November 20 » Vietnam War: The Plain Dealer (Cleveland, Ohio) publishes explicit photographs of dead villagers from the My Lai Massacre in Vietnam.
When copying data from this family tree, please include a reference to the origin: Hendrik Dreyer, "Dreyer Tree", database, Genealogy Online (https://www.genealogieonline.nl/dreyer-tree/I6606.php : accessed January 21, 2026), "Pieter Hendrik Rudolph du Plooy (1880-1969)".
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