February 1 » La bohème premieres in Turin at the Teatro Regio (Turin), conducted by the young Arturo Toscanini.
March 1 » Henri Becquerel discovers radioactive decay.
May 18 » The United States Supreme Court rules in Plessy v. Ferguson that the "separate but equal" doctrine is constitutional.
November 1 » A picture showing the bare breasts of a woman appears in National Geographic magazine for the first time.
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.
Day of marriage March 15, 1923
The temperature on March 15, 1923 was between 0.7 °C and 4.9 °C and averaged 3.0 °C. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 1 » Britain's Railways are grouped into the Big Four: LNER, GWR, SR, and LMS.
September 12 » Southern Rhodesia, today called Zimbabwe, is annexed by the United Kingdom.
September 26 » The German government accepts the occupation of the Ruhr.
September 29 » The French Mandate for Syria and the Lebanon takes effect.
October 31 » The first of 160 consecutive days of 100° Fahrenheit at Marble Bar, Western Australia.
December 21 » United Kingdom and Nepal formally signed an agreement of friendship, called the Nepal–Britain Treaty of 1923, which superseded the Treaty of Sugauli signed in 1816.
Day of death September 8, 1983
The temperature on September 8, 1983 was between 6.9 °C and 19.6 °C and averaged 15.0 °C. There was 0.1 mm of rain during 0.5 hours. There was 4.4 hours of sunshine (33%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
In The Netherlands , there was from Thursday, November 4, 1982 to Monday, July 14, 1986 the cabinet Lubbers I, with Drs. R.F.M. Lubbers (CDA) as prime minister.
January 18 » The International Olympic Committee restores Jim Thorpe's Olympic medals to his family.
February 28 » The final episode of M*A*S*H airs, with almost 106 million viewers. It still holds the record for the highest viewership of a season finale.
March 11 » Pakistan successfully conducts a cold test of a nuclear weapon.
April 7 » During STS-6, astronauts Story Musgrave and Don Peterson perform the first Space Shuttle spacewalk.
September 19 » Saint Kitts and Nevis gains its independence.
December 5 » Dissolution of the Military Junta in Argentina.
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/I12460.php : accessed February 17, 2026), "Pieter Modder (1896-1983)".
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