The temperature on September 3, 1911 was between 10.0 °C and 24.6 °C and averaged 17.8 °C. There was 9.5 hours of sunshine (70%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
January 5 » Kappa Alpha Psi, the world's third oldest and largest black fraternity, is founded at Indiana University.
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
June 16 » IBM founded as the Computing-Tabulating-Recording Company in Endicott, New York.
September 20 » The White Star Line's RMSOlympic collides with the British warship HMSHawke.
October 9 » An accidental bomb explosion triggers the Wuchang Uprising against the Chinese monarchy.
November 11 » Many cities in the Midwestern United States break their record highs and lows on the same day as a strong cold front rolls through.
Day of death February 5, 1912
The temperature on February 5, 1912 was between -15.6 °C and -3.8 °C and averaged -9.9 °C. There was 7.0 hours of sunshine (75%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
March 5 » Italo-Turkish War: Italian forces are the first to use airships for military purposes, employing them for reconnaissance behind Turkish lines.
July 8 » Henrique Mitchell de Paiva Couceiro leads an unsuccessful royalist attack against the First Portuguese Republic in Chaves.
August 6 » The Bull Moose Party meets at the Chicago Coliseum.
October 24 » First Balkan War: The Battle of Kumanovo concludes with the Serbian victory against the Ottoman Empire.
October 26 » First Balkan War: The Ottomans lose the cities of Thessaloniki and Skopje.
December 8 » Leaders of the German Empire hold an Imperial War Council to discuss the possibility that war might break out.
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/I119083.php : accessed October 14, 2026), "Anne Wagenaar (1911-1912)".
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