April 14 » The Pan-American Union is founded by the First International Conference of American States in Washington, D.C.
July 1 » Canada and Bermuda are linked by telegraph cable.
July 10 » Wyoming is admitted as the 44th U.S. state.
July 26 » In Buenos Aires, Argentina the Revolución del Parque takes place, forcing President Miguel Ángel Juárez Celman's resignation.
October 11 » In Washington, D.C., the Daughters of the American Revolution is founded.
November 29 » The Meiji Constitution goes into effect in Japan, and the first Diet convenes.
Day of marriage February 17, 1911
The temperature on February 17, 1911 was between 7.2 °C and 10.6 °C and averaged 8.7 °C. There was 0.3 hours of sunshine (3%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the west. Source: KNMI
February 18 » The first official flight with airmail takes place from Allahabad, United Provinces, British India (now India), when Henri Pequet, a 23-year-old pilot, delivers 6,500 letters to Naini, about 10 kilometres (6.2mi) away.
May 15 » In Standard Oil Co. of New Jersey v. United States, the United States Supreme Court declares Standard Oil to be an "unreasonable" monopoly under the Sherman Antitrust Act and orders the company to be broken up.
September 20 » The White Star Line's RMSOlympic collides with the British warship HMSHawke.
September 29 » Italy declares war on the Ottoman Empire.
October 5 » The Kowloon–Canton Railway commences service.
October 9 » An accidental bomb explosion triggers the Wuchang Uprising against the Chinese monarchy.
When copying data from this family tree, please include a reference to the origin: Bert Grooten, "Family tree Grooten", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-grooten/I56.php : accessed February 12, 2026), "Magrietha Blaak (1890-????)".
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