The temperature on September 4, 1911 was between 5.1 °C and 22.1 °C and averaged 15.0 °C. There was 9.9 hours of sunshine (74%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
January 26 » Glenn Curtiss flies the first successful American seaplane.
April 2 » The Australian Bureau of Statistics conducts the country's first national census.
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.
July 1 » Germany despatches the gunship SMSPanther to Morocco, sparking the Agadir Crisis.
September 1 » The armored cruiser Georgios Averof is commissioned into the Greek Navy. It now serves as a museum ship.
October 10 » The day after a bomb explodes prematurely, the Wuchang Uprising begins against the Chinese monarchy.
When copying data from this family tree, please include a reference to the origin: J Eijsermans, "Eijsermans family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijsermans/I550478.php : accessed January 7, 2026), "N.N. de Kok (1911)".
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