The temperature on July 20, 1911 was between 10.6 °C and 24.4 °C and averaged 18.8 °C. There was 6.7 hours of sunshine (42%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
May 30 » At the Indianapolis Motor Speedway, the first Indianapolis 500 ends with Ray Harroun in his Marmon Wasp becoming the first winner of the 500-mile auto race.
June 22 » Mexican Revolution: Government forces bring an end to the Magonista rebellion of 1911 in the Second Battle of Tijuana.
August 29 » The Canadian Naval Service becomes the Royal Canadian Navy.
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.
December 29 » Mongolia gains independence from the Qing dynasty, enthroning 8th Jebtsundamba Khutughtu as Khagan of Mongolia.
When copying data from this family tree, please include a reference to the origin: Eric Brouwer, "Family tree Brouwer - Koster", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eric-brouwer/I79063.php : accessed January 20, 2026), "Marinus Giljam Bierens (1884-????)".
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