January 18 » An X-ray generating machine is exhibited for the first time by H. L. Smith.
August 30 » Philippine Revolution: After Spanish victory in the Battle of San Juan del Monte, eight provinces in the Philippines are declared under martial law by the Spanish Governor-General Ramón Blanco y Erenas.
September 21 » Anglo-Egyptian conquest of Sudan: British forces under the command of Horatio Kitchener take Dongola.
November 17 » The Western Pennsylvania Hockey League, which later became the first ice hockey league to openly trade and hire players, began play at Pittsburgh's Schenley Park Casino.
December 10 » Alfred Jarry's Ubu Roi premieres in Paris. A riot breaks out at the end of the performance.
December 30 » Canadian ice hockey player Ernie McLea scores the first hat-trick in Stanley Cup play, and the Cup-winning goal as the Montreal Victorias defeat the Winnipeg Victorias 6–5.
Day of death January 31, 1980
The temperature on January 31, 1980 was between 2.9 °C and 10.7 °C and averaged 7.0 °C. There was 23.9 mm of rain during 8.5 hours. There was 2.7 hours of sunshine (30%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. 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.
March 23 » Archbishop Óscar Romero of El Salvador gives his famous speech appealing to men of the El Salvadoran armed forces to stop killing the Salvadorans.
March 27 » Silver Thursday: A steep fall in silver prices, resulting from the Hunt Brothers attempting to corner the market in silver, leads to panic on commodity and futures exchanges.
August 1 » A train crash kills 18 people in County Cork, Ireland.
August 25 » Zimbabwe joins the United Nations.
September 30 » Ethernet specifications are published by Xerox working with Intel and Digital Equipment Corporation.
October 9 » Pope John Paul II greets the Dalai Lama during a private audience in Vatican City.
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/I12519.php : accessed March 12, 2026), "Petrus Jacobus DuPreez Lourens (1896-1980)".
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