The temperature on September 25, 1909 was between 7.7 °C and 18.0 °C and averaged 12.4 °C. There was 1.0 hours of sunshine (8%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south. Source: KNMI
January 16 » Ernest Shackleton's expedition finds the magnetic South Pole.
February 12 » The National Association for the Advancement of Colored People (NAACP) is founded.
February 23 » The AEA Silver Dart makes the first powered flight in Canada and the British Empire.
April 27 » Sultan of Ottoman Empire Abdul Hamid II is overthrown, and is succeeded by his brother, Mehmed V.
June 2 » Alfred Deakin becomes Prime Minister of Australia for the third time.
September 7 » Eugène Lefebvre crashes a new French-built Wright biplane during a test flight at Juvisy, south of Paris, becoming the first aviator in the world to lose his life in a powered heavier-than-air craft.
Day of death May 31, 1911
The temperature on May 31, 1911 was between 14.1 °C and 26.0 °C and averaged 20.4 °C. There was 13.3 hours of sunshine (81%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
January 12 » The University of the Philippines College of Law is formally established; three future Philippine presidents are among the first enrollees.
January 29 » Mexican Revolution: Mexicali is captured by the Mexican Liberal Party, igniting the Magonista rebellion of 1911.
April 6 » During the Battle of Deçiq, Dedë Gjon Luli Dedvukaj, leader of the Malësori Albanians, raises the Albanian flag in the town of Tuzi, Montenegro, for the first time after George Kastrioti (Skanderbeg).
August 24 » Manuel de Arriaga is elected and sworn-in as the first President of Portugal.
October 5 » The Kowloon–Canton Railway commences service.
December 29 » Sun Yat-sen becomes the provisional President of the Republic of China; he formally takes office on January 1, 1912.
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/I168440.php : accessed February 13, 2026), "Klaas Johannes Douma (1909-1911)".
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