February 11 » Anton Bruckner's 9th Symphony receives its first performance in Vienna, Austria.
April 26 » Atlético Madrid Association football club is founded
May 29 » In the May Coup, Alexander I, King of Serbia, and Queen Draga, are assassinated in Belgrade by the Black Hand (Crna Ruka) organization.
June 19 » Benito Mussolini, at the time a radical Socialist, is arrested by Bern police for advocating a violent general strike.
November 3 » With the encouragement of the United States, Panama separates from Colombia.
November 18 » The Hay–Bunau-Varilla Treaty is signed by the United States and Panama, giving the United States exclusive rights over the Panama Canal Zone.
Day of death February 20, 1904
The temperature on February 20, 1904 was between 1.2 °C and 9.9 °C and averaged 6.1 °C. The average windspeed was 5 Bft (very strong wind) and was prevailing from the southwest. Source: KNMI
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 17 » Madama Butterfly receives its première at La Scala in Milan.
April 8 » The French Third Republic and the United Kingdom of Great Britain and Ireland sign the Entente cordiale.
May 5 » Pitching against the Philadelphia Athletics at the Huntington Avenue Grounds, Cy Young of the Boston Americans throws the first perfect game in the modern era of baseball.
May 15 » Russo-Japanese War: The Russian minelayer Amur lays a minefield about 15 miles off Port Arthur and sinks Japan's battleships Hatsuse, 15,000 tons, with 496 crew and Yashima.
October 4 » The IFK Göteborg football club is founded in Sweden.
When copying data from this family tree, please include a reference to the origin: J. den Nieuwenboer, "Family tree Den Nieuwenboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-den-nieuwenboer/I3003.php : accessed May 12, 2025), "Jannigje Johanna Boer (1903-1904)".
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