January 30 » Archduke Crown Prince Rudolf of Austria, heir to the Austro-Hungarian crown, is found dead with his mistress Baroness Mary Vetsera in the Mayerling.
March 31 » The Eiffel Tower is officially opened.
April 1 » The University of Northern Colorado was established, as the Colorado State Normal School.
April 22 » At noon, thousands rush to claim land in the Land Rush of 1889. Within hours the cities of Oklahoma City and Guthrie are formed with populations of at least 10,000.
May 6 » The Eiffel Tower is officially opened to the public at the Universal Exposition in Paris.
When copying data from this family tree, please include a reference to the origin: P. Beumer, "Family tree familie Beumer en familie Ridder", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-beumer-en-ridder/I2168.php : accessed September 26, 2024), "Jacob Hennipman (1889-????)".
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