January 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
January 24 » Second Boer War: Boers stop a British attempt to break the Siege of Ladysmith in the Battle of Spion Kop.
May 29 » N'Djamena is founded as Fort-Lamy by the French commander Émile Gentil.
June 20 » Baron Eduard Toll, leader of the Russian Polar Expedition of 1900, departs Saint Petersburg in Russia on the explorer ship Zarya, never to return.
July 2 » The first Zeppelin flight takes place on Lake Constance near Friedrichshafen, Germany.
December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
When copying data from this family tree, please include a reference to the origin: Klaas Gebert, "Gebert Wereld", database, Genealogy Online (https://www.genealogieonline.nl/gebert-wereld/P42.php : accessed February 12, 2026), "Maria Gebert (1900-)".
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