January 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
February 7 » A Chinese immigrant in San Francisco falls ill to bubonic plague in the first plague epidemic in the continental United States.
February 27 » The British Labour Party is founded.
March 13 » British forces occupy Bloemfontein, Orange Free State, during the Second Boer War.
June 18 » Empress Dowager Cixi of China orders all foreigners killed, including foreign diplomats and their families.
September 13 » Filipino insurgents defeat a small American column in the Battle of Pulang Lupa, during the Philippine–American War.
Day of death April 3, 1909
The temperature on April 3, 1909 was between -3.7 °C and 6.0 °C and averaged 1.3 °C. There was 2.7 hours of sunshine (21%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
March 10 » By signing the Anglo-Siamese Treaty of 1909, Thailand relinquishes its sovereignty over the Malay states of Kedah, Kelantan, Perlis and Terengganu, which become British protectorates.
April 9 » The U.S. Congress passes the Payne–Aldrich Tariff Act.
May 13 » The first Giro d'Italia starts from Milan. Italian cyclist Luigi Ganna will be the winner.
August 28 » A group of mid-level Greek Army officers launches the Goudi coup, seeking wide-ranging reforms.
September 23 » The novel Le Fantôme de l'Opéra (The Phantom of the Opera), by Gaston Leroux, is published as a serialization in Le Gaulois.
December 10 » Selma Lagerlöf becomes the first female writer to win the Nobel Prize in Literature.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I80592.php : accessed October 16, 2026), "Atje Koster (1900-1909)".
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