February 4 » The Philippine–American War begins with the Battle of Manila.
April 18 » The St. Andrew's Ambulance Association is granted a royal charter by Queen Victoria.
June 7 » American Temperance crusader Carrie Nation begins her campaign of vandalizing alcohol-serving establishments by destroying the inventory in a saloon in Kiowa, Kansas.
July 26 » Ulises Heureaux, the 27th President of the Dominican Republic, is assassinated.
July 29 » The First Hague Convention is signed.
Day of marriage April 27, 1922
The temperature on April 27, 1922 was between 3.4 °C and 9.9 °C and averaged 5.8 °C. There was 3.9 mm of rain. There was 4.2 hours of sunshine (29%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-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.
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
May 19 » The Young Pioneer Organization of the Soviet Union is established.
June 16 » General election in the Irish Free State: The pro-Treaty Sinn Féin party wins a large majority.
September 13 » The final act of the Greco-Turkish War, the Great Fire of Smyrna, commences.
September 27 » King Constantine I of Greece abdicates his throne in favor of his eldest son, George II.
November 24 » Nine Irish Republican Army members are executed by an Irish Free State firing squad. Among them is author Erskine Childers, who had been arrested for illegally carrying a revolver.
December 6 » One year to the day after the signing of the Anglo-Irish Treaty, the Irish Free State comes into existence.
Day of death September 26, 1968
The temperature on September 26, 1968 was between 11.9 °C and 15.6 °C and averaged 13.6 °C. There was 17.3 mm of rain during 17.3 hours. The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
January 31 » Nauru gains independence from Australia.
February 16 » In Haleyville, Alabama, the first 9-1-1 emergency telephone system goes into service.
April 4 » A.E.K. Athens B.C. becomes the first Greek team to win the European Basketball Cup.
July 1 » Formal separation of the United Auto Workers from the AFL–CIO in the United States.
October 20 » Former First Lady Jacqueline Kennedy marries Greek shipping tycoon Aristotle Onassis.
December 13 » Brazilian President Artur da Costa e Silva issues AI-5 (Institutional Act No. 5), enabling government by decree and suspending habeas corpus.
When copying data from this family tree, please include a reference to the origin: Hans Opperman, "Family tree Opperman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-opperman/I4122.php : accessed January 26, 2026), "Elisabeth Barbara Maria Wolff (1899-1968)".
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