February 7 » A Chinese immigrant in San Francisco falls ill to bubonic plague in the first plague epidemic in the continental United States.
February 18 » Second Boer War: Imperial forces suffer their worst single-day loss of life on Bloody Sunday, the first day of the Battle of Paardeberg.
February 27 » The British Labour Party is founded.
March 14 » The Gold Standard Act is ratified, placing the United States currency on the gold standard.
March 18 » AFC Ajax Amsterdam, The Netherlands's biggest and most successful football club, was founded.
June 9 » Indian nationalist Birsa Munda dies of cholera in a British prison.
Day of death June 20, 1904
The temperature on June 20, 1904 was between 12.0 °C and 18.9 °C and averaged 15.4 °C. There was 4.1 hours of sunshine (24%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
January 7 » The distress signal "CQD" is established only to be replaced two years later by "SOS".
February 9 » Russo-Japanese War: Battle of Port Arthur concludes.
February 22 » The United Kingdom sells a meteorological station on the South Orkney Islands to Argentina; the islands are subsequently claimed by the United Kingdom in 1908.
May 21 » The Fédération Internationale de Football Association (FIFA) is founded in Paris.
July 21 » Louis Rigolly, a Frenchman, becomes the first man to break the 100mph (161km/h) barrier on land. He drove a 15-liter Gobron-Brillié in Ostend, Belgium.
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: Gert Jonker, "Family tree Jonker", database, Genealogy Online (https://www.genealogieonline.nl/jonker_stamboom/I5208.php : accessed February 14, 2026), "Petrus Kolderman (1878-1904)".
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