The temperature on November 30, 1911 was between 5.4 °C and 7.9 °C and averaged 6.5 °C. There was 0.2 mm of rain. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
April 29 » Tsinghua University, one of mainland China's leading universities, is founded.
May 15 » More than 300 Chinese immigrants are killed in the Torreón massacre when the forces of the Mexican Revolution led by Emilio Madero take the city of Torreón from the Federales.
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 7 » The United States, UK, Japan, and Russia sign the North Pacific Fur Seal Convention of 1911 banning open-water seal hunting, the first international treaty to address wildlife preservation issues.
September 25 » An explosion of badly degraded propellant charges on board the French battleship Liberté detonates the forward ammunition magazines and destroys the ship.
November 1 » World's first combat aerial bombing mission takes place in Libya during the Italo-Turkish War. Second Lieutenant Giulio Gavotti of Italy drops several small bombs.
Day of death January 4, 1912
The temperature on January 4, 1912 was between 7.3 °C and 9.0 °C and averaged 8.3 °C. There was 8.4 mm of rain. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I132446.php : accessed October 24, 2026), "Sjoerd Raven (1911-1912)".
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