The temperature on June 30, 1881 was about 22.8 °C. The air pressure was 2 kgf/m2 and came mainly from the west-southwest. The airpressure was 77 cm mercury. The atmospheric humidity was 53%. Source: KNMI
In The Netherlands , there was from August 20, 1879 to April 23, 1883 the cabinet Van Lijnden van Sandenburg, with Mr. C.Th. baron Van Lijnden van Sandenburg (conservatief-AR) as prime minister.
April 14 » The Four Dead in Five Seconds Gunfight is fought in El Paso, Texas.
May 21 » The American Red Cross is established by Clara Barton in Washington, D.C.
June 14 » The White Rajahs territories become the British protectorate of Sarawak.
July 23 » The Boundary Treaty of 1881 between Chile and Argentina is signed in Buenos Aires.
September 19 » U.S. President James A. Garfield dies of wounds suffered in a July 2 shooting. Vice President Chester A. Arthur becomes President upon Garfield's death.
November 7 » Mapuche rebels attack the Chilean settlement of Nueva Imperial, as defenders fled to the hills and the settlement was effectively destroyed.
Day of marriage August 23, 1922
The temperature on August 23, 1922 was between 10.2 °C and 15.4 °C and averaged 13.5 °C. There was 4.8 mm of rain. There was 3.5 hours of sunshine (25%). The average windspeed was 5 Bft (very strong 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.
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.
January 11 » First use of insulin to treat diabetes in a human patient.
February 6 » The Washington Naval Treaty is signed in Washington, D.C., limiting the naval armaments of United States, Britain, Japan, France, and Italy.
June 1 » The Royal Ulster Constabulary is founded.
June 16 » General election in the Irish Free State: The pro-Treaty Sinn Féin party wins a large majority.
December 6 » One year to the day after the signing of the Anglo-Irish Treaty, the Irish Free State comes into existence.
December 9 » Gabriel Narutowicz is elected the first president of Poland.
When copying data from this family tree, please include a reference to the origin: Marieke Cooper, "Family tree Cooper, Kooper, Oostwal, Robert, Ooteman en Blokland", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-cooper/I4117.php : accessed February 17, 2026), "Johannes Hendricus Wijnen (1881-????)".
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