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 7 » War of the Pacific: The Battle of Arica, the assault and capture of Morro de Arica (Arica Cape), ends the Campaña del Desierto (Desert Campaign).
June 24 » First performance of O Canada at the Congrès national des Canadiens-Français. The song would later become the national anthem of Canada.
September 1 » The army of Mohammad Ayub Khan is routed by the British at the Battle of Kandahar, ending the Second Anglo-Afghan War.
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.
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
April 3 » Vietnam War: United States Secretary of Defense Melvin Laird announces that the United States will start to "Vietnamize" the war effort.
May 9 » Carlos Lamarca leads the first urban guerrilla action against the military dictatorship of Brazil in São Paulo, by robbing two banks.
June 22 » The Cuyahoga River catches fire in Cleveland, Ohio, drawing national attention to water pollution, and spurring the passing of the Clean Water Act and the creation of the Environmental Protection Agency.
August 15 » The Woodstock Music & Art Fair opens in upstate New York, featuring some of the top rock musicians of the era.
December 8 » Olympic Airways Flight 954 strikes a mountain outside of Keratea, Greece, killing 90 people in the worst crash of a Douglas DC-6 in history.
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 24, 2026), "Pieter Hendrik Rudolph du Plooy (1880-1969)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.