January 23 » Second Boer War: The Battle of Spion Kop between the forces of the South African Republic and the Orange Free State and British forces ends in a British defeat.
February 9 » The Davis Cup competition is established.
April 2 » The United States Congress passes the Foraker Act, giving Puerto Rico limited self-rule.
April 15 » Philippine–American War: Filipino guerrillas launch a surprise attack on U.S. infantry and begin a four-day siege of Catubig, Philippines.
May 17 » Second Boer War: British troops relieve Mafeking.
October 19 » Max Planck discovers Planck's law of black-body radiation.
Day of death September 12, 1903
The temperature on September 12, 1903 was between 6.0 °C and 13.7 °C and averaged 9.8 °C. There was 6.0 hours of sunshine (46%). Source: KNMI
June 16 » Roald Amundsen leaves Oslo, Norway, to commence the first east–west navigation of the Northwest Passage.
July 20 » The Ford Motor Company ships its first automobile.
August 29 » The Slava, the last of the five Borodino-class battleships, is launched.
September 27 » The Wreck of the Old 97, an American rail disaster that became the subject of a popular ballad.
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.
December 16 » Taj Mahal Palace & Tower hotel in Bombay first opens its doors to guests.
When copying data from this family tree, please include a reference to the origin: Alle Elbers, "Sluzigers (e.a.)", database, Genealogy Online (https://www.genealogieonline.nl/sluzigers/I136277.php : accessed February 8, 2026), "Reinder Bosman (1900-1903)".
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