The temperature on August 20, 1911 was between 8.9 °C and 23.3 °C and averaged 17.0 °C. There was 10.0 hours of sunshine (69%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east. Source: KNMI
January 3 » A magnitude 7.7 earthquake destroys the city of Almaty in Russian Turkestan.
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
May 21 » President of Mexico Porfirio Díaz and the revolutionary Francisco Madero sign the Treaty of Ciudad Juárez to put an end to the fighting between the forces of both men, concluding the initial phase of the Mexican Revolution.
August 24 » Manuel de Arriaga is elected and sworn-in as the first President of Portugal.
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.
Day of marriage March 16, 1935
The temperature on March 16, 1935 was between 0.7 °C and 15.0 °C and averaged 7.2 °C. There was 9.2 hours of sunshine (78%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
May 24 » The first night game in Major League Baseball history is played in Cincinnati, Ohio, with the Cincinnati Reds beating the Philadelphia Phillies 2–1 at Crosley Field.
June 12 » A ceasefire is negotiated between Bolivia and Paraguay, ending the Chaco War.
September 2 » The Labor Day Hurricane, the most intense hurricane to strike the United States, makes landfall at Long Key, Florida, killing at least 400.
September 15 » Nazi Germany adopts a new national flag bearing the swastika.
October 3 » Second Italo-Abyssinian War: Italy invades Ethiopia.
December 27 » Regina Jonas is ordained as the first female rabbi in the history of Judaism.
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/I137110.php : accessed October 18, 2026), "Meindert de Vries (1911-)".
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