February 7 » Second Boer War: British troops fail in their third attempt to lift the Siege of Ladysmith.
May 24 » Second Boer War: The United Kingdom annexes the Orange Free State.
June 21 » Boxer Rebellion. China formally declares war on the United States, Britain, Germany, France and Japan, as an edict issued from the Empress Dowager Cixi.
June 25 » The Taoist monk Wang Yuanlu discovers the Dunhuang manuscripts, a cache of ancient texts that are of great historical and religious significance, in the Mogao Caves of Dunhuang, China.
August 16 » The Battle of Elands River during the Second Boer War ends after a 13-day siege is lifted by the British. The battle had begun when a force of between 2,000 and 3,000 Boers had surrounded a force of 500 Australians, Rhodesians, Canadians and British soldiers at a supply dump at Brakfontein Drift.
December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
Day of death September 9, 1900
The temperature on September 9, 1900 was about 11.8 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 98%. Source: KNMI
January 31 » Datu Muhammad Salleh is killed in Kampung Teboh, Tambunan, ending the Mat Salleh Rebellion.
February 9 » The Davis Cup competition is established.
February 27 » Fußball-Club Bayern München is founded.
February 27 » Second Boer War: In South Africa, British military leaders receive an unconditional notice of surrender from Boer General Piet Cronjé at the Battle of Paardeberg.
May 26 » Thousand Days' War: The Colombian Conservative Party turns the tide of war in their favor with victory against the Colombian Liberal Party in the Battle of Palonegro.
October 9 » The Cook Islands become a territory of the United Kingdom.
When copying data from this family tree, please include a reference to the origin: A. Beunder, "Family tree Beunder", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-beunder/I590.php : accessed January 30, 2026), "Gerbrand Beunder (1900-1900)".
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