The temperature on October 13, 1911 was between 3.1 °C and 16.1 °C and averaged 10.3 °C. There was 4.8 mm of rain. There was 0.8 hours of sunshine (7%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-southeast. Source: KNMI
May 19 » Parks Canada, the world's first national park service, is established as the Dominion Parks Branch under the Department of the Interior.
May 21 » President of Mexico Porfirio Díaz and the revolutionary Francisco Madero sign the Treaty of Ciudad Juárez to put an end to the fighting between the forces of both men, concluding the initial phase of the Mexican Revolution.
August 24 » Manuel de Arriaga is elected and sworn-in as the first President of Portugal.
September 20 » The White Star Line's RMSOlympic collides with the British warship HMSHawke.
September 25 » An explosion of badly degraded propellant charges on board the French battleship Liberté detonates the forward ammunition magazines and destroys the ship.
October 9 » An accidental bomb explosion triggers the Wuchang Uprising against the Chinese monarchy.
When copying data from this family tree, please include a reference to the origin: RJF Einhaus, "Protzman family genealogy", database, Genealogy Online (https://www.genealogieonline.nl/genealogie-protzman/I511.php : accessed February 1, 2026), "Aaltje Prinsen (1911-)".
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