January 30 » Archduke Crown Prince Rudolf of Austria, heir to the Austro-Hungarian crown, is found dead with his mistress Baroness Mary Vetsera in the Mayerling.
February 11 » Meiji Constitution of Japan is adopted.
June 3 » The first long-distance electric power transmission line in the United States is completed, running 14 miles (23km) between a generator at Willamette Falls and downtown Portland, Oregon.
July 11 » Tijuana, Mexico, is founded.
September 23 » Nintendo Koppai (Later Nintendo Company, Limited) is founded by Fusajiro Yamauchi to produce and market the playing card game Hanafuda.
November 14 » Pioneering female journalist Nellie Bly (aka Elizabeth Cochrane) begins a successful attempt to travel around the world in less than 80 days. She completes the trip in 72 days.
Day of marriage June 8, 1911
The temperature on June 8, 1911 was between 10.0 °C and 21.2 °C and averaged 15.4 °C. There was 7.1 hours of sunshine (43%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
January 14 » Roald Amundsen's South Pole expedition makes landfall on the eastern edge of the Ross Ice Shelf.
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.
May 31 » The President of Mexico Porfirio Díaz flees the country during the Mexican Revolution.
September 23 » Pilot Earle Ovington makes the first official airmail delivery in America under the authority of the United States Post Office Department
October 9 » An accidental bomb explosion triggers the Wuchang Uprising against the Chinese monarchy.
December 27 » "Jana Gana Mana", the national anthem of India, is first sung in the Calcutta Session of the Indian National Congress.
Day of death November 18, 1918
The temperature on November 18, 1918 was between -1.5 °C and 6.9 °C and averaged 2.7 °C. There was 3.4 mm of rain. There was 0.2 hours of sunshine (2%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 21 » The last Carolina parakeet dies in captivity at the Cincinnati Zoo.
June 26 » World War I: Allied forces under John J. Pershing and James Harbord defeat Imperial German forces under Wilhelm, German Crown Prince in the Battle of Belleau Wood.
July 26 » Emmy Noether's paper, which became known as Noether's theorem was presented at Göttingen, Germany, from which conservation laws are deduced for symmetries of angular momentum, linear momentum, and energy.
September 10 » Russian Civil War: The Red Army captures Kazan.
October 30 » World War I: The Ottoman Empire signs the Armistice of Mudros with the Allies.
December 17 » Darwin Rebellion: Up to 1,000 demonstrators march on Government House in Darwin, Northern Territory, Australia.
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/I101131.php : accessed February 13, 2026), "Romke Postma (1889-1918)".
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