April 17 » The Treaty of Shimonoseki between China and Japan is signed. This marks the end of the First Sino-Japanese War, and the defeated Qing Empire is forced to renounce its claims on Korea and to concede the southern portion of the Fengtien province, Taiwan and the Pescadores Islands to Japan.
May 25 » The Republic of Formosa is formed, with Tang Jingsong as its president.
October 4 » Horace Rawlins wins the first U.S. Open Men's Golf Championship.
October 21 » The Republic of Formosa collapses as Japanese forces invade.
November 8 » While experimenting with electricity, Wilhelm Röntgen discovers the X-ray.
Day of marriage June 7, 1919
The temperature on June 7, 1919 was between 10.0 °C and 24.5 °C and averaged 17.7 °C. There was 0.1 mm of rain. There was 10.5 hours of sunshine (63%). The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
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.
January 18 » World War I: The Paris Peace Conference opens in Versailles, France.
January 22 » Act Zluky is signed, unifying the Ukrainian People's Republic and the West Ukrainian National Republic.
April 16 » Polish–Soviet War: The Polish army launches the Vilna offensive to capture Vilnius in modern Lithuania.
May 16 » A naval Curtiss NC-4 aircraft commanded by Albert Cushing Read leaves Trepassey, Newfoundland, for Lisbon via the Azores on the first transatlantic flight.
June 2 » Anarchists simultaneously set off bombs in eight separate U.S. cities.
June 28 » The Treaty of Versailles is signed, ending the state of war between Germany and the Allies of World War I.
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/I78551.php : accessed October 20, 2026), "Annechiena Alberdina de Groot (1895-????)".
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