February 14 » The United States Department of Commerce and Labor is established (later split into the Department of Commerce and the Department of Labor).
April 26 » Atlético Madrid Association football club is founded
June 16 » The Ford Motor Company is incorporated.
July 19 » Maurice Garin wins the first Tour de France.
October 6 » The High Court of Australia sits for the first time.
December 14 » The Wright brothers make their first attempt to fly with the Wright Flyer at Kitty Hawk, North Carolina.
Day of death March 31, 1911
The temperature on March 31, 1911 was between 1.8 °C and 14.1 °C and averaged 8.5 °C. There was 3.0 hours of sunshine (23%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
June 16 » IBM founded as the Computing-Tabulating-Recording Company in Endicott, New York.
June 22 » Mexican Revolution: Government forces bring an end to the Magonista rebellion of 1911 in the Second Battle of Tijuana.
August 1 » Harriet Quimby takes her pilot's test and becomes the first U.S. woman to earn an Aero Club of America aviator's certificate.
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 13 » Prince Arthur, Duke of Connaught and Strathearn, becomes the first Governor General of Canada of royal descent.
November 5 » After declaring war on the Ottoman Empire on September 29, 1911, Italy annexes Tripoli and Cyrenaica.
When copying data from this family tree, please include a reference to the origin: Jan Kaper, "Family tree Kaper", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kaper/I45971.php : accessed February 13, 2026), "Wubbo Post (1903-1911)".
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