February 6 » Spanish–American War: The Treaty of Paris, a peace treaty between the United States and Spain, is ratified by the United States Senate.
February 22 » Filipino forces led by General Antonio Luna launch counterattacks for the first time against the American forces during the Philippine–American War. The Filipinos fail to regain Manila from the Americans.
May 30 » Pearl Hart, a female outlaw of the Old West, robs a stage coach 30 miles southeast of Globe, Arizona.
November 2 » The Boers begin their 118-day siege of British-held Ladysmith during the Second Boer War.
December 2 » Philippine–American War: The Battle of Tirad Pass, termed "The Filipino Thermopylae", is fought.
Day of marriage June 1, 1920
The temperature on June 1, 1920 was between 5.9 °C and 17.0 °C and averaged 13.3 °C. There was 0.1 mm of rain. There was 0.7 hours of sunshine (4%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west. 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 10 » The Treaty of Versailles takes effect, officially ending World War I.
January 16 » The League of Nations holds its first council meeting in Paris, France.
January 19 » The United States Senate votes against joining the League of Nations.
March 8 » The Arab Kingdom of Syria, the first modern Arab state to come into existence, is established.
May 3 » A Bolshevik coup fails in the Democratic Republic of Georgia.
September 7 » Two newly purchased Savoia flying boats crash in the Swiss Alps en route to Finland where they would serve with the Finnish Air Force, killing both crews.
When copying data from this family tree, please include a reference to the origin: Hans Pruckmuller, "Family tree Janus", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-janus/I43.php : accessed February 15, 2026), "Helena Johanna Kupers (1899-????)".
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