The temperature on March 4, 1911 was between 4.4 °C and 9.6 °C and averaged 7.4 °C. There was 3.6 mm of rain. The average windspeed was 3 Bft (moderate breeze) 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.
September 20 » The White Star Line's RMSOlympic collides with the British warship HMSHawke.
September 25 » An explosion of badly degraded propellant charges on board the French battleship Liberté detonates the forward ammunition magazines and destroys the ship.
December 29 » Mongolia gains independence from the Qing dynasty, enthroning 8th Jebtsundamba Khutughtu as Khagan of Mongolia.
December 29 » Sun Yat-sen becomes the provisional President of the Republic of China; he formally takes office on January 1, 1912.
Day of marriage May 21, 1932
The temperature on May 21, 1932 was between 14.6 °C and 25.4 °C and averaged 19.6 °C. There was 8.7 hours of sunshine (55%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 25 » Second Sino-Japanese War: The Chinese National Revolutionary Army begins the defense of Harbin.
February 18 » The Empire of Japan creates the independent state of Manzhouguo (the obsolete Chinese name for Manchuria) free from the Republic of China and installed former Chinese Emperor Aisin Gioro Puyi as Chief Executive of the State.
March 1 » Charles Lindbergh's son is kidnapped.
May 20 » Amelia Earhart takes off from Newfoundland to begin the world's first solo nonstop flight across the Atlantic Ocean by a female pilot, landing in Ireland the next day.
December 10 » Thailand becomes a constitutional monarchy.
December 19 » BBC World Service begins broadcasting as the BBC Empire Service.
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/I137282.php : accessed October 10, 2026), "Hendrik de Boer (1911-)".
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