April 7 » Completion of the first Lake Biwa Canal.
June 1 » The United States Census Bureau begins using Herman Hollerith's tabulating machine to count census returns.
July 2 » The U.S. Congress passes the Sherman Antitrust Act.
July 10 » Wyoming is admitted as the 44th U.S. state.
December 29 » Wounded Knee Massacre on Pine Ridge Indian Reservation, 300 Lakota are killed by the United States 7th Cavalry Regiment.
December 30 » Following the Wounded Knee Massacre, the United States Army and Lakota warriors face off in the Drexel Mission Fight.
Day of marriage May 13, 1922
The temperature on May 13, 1922 was between 0.4 °C and 12.6 °C and averaged 6.5 °C. There was 11.0 hours of sunshine (71%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northwest. 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.
June 16 » General election in the Irish Free State: The pro-Treaty Sinn Féin party wins a large majority.
June 17 » Portuguese naval aviators Gago Coutinho and Sacadura Cabral complete the first aerial crossing of the South Atlantic.
June 29 » France grants 1km at Vimy Ridge "freely, and for all time, to the Government of Canada, the free use of the land exempt from all taxes".
June 30 » In Washington D.C., U.S. Secretary of State Charles Evans Hughes and Dominican Ambassador Francisco J. Peynado sign the Hughes–Peynado agreement, which ends the United States occupation of the Dominican Republic.
August 22 » Michael Collins, Commander-in-chief of the Irish Free State Army, is shot dead in an ambush during the Irish Civil War.
August 30 » Battle of Dumlupınar: The final battle in the Greco-Turkish War ("Turkish War of Independence").
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/I79350.php : accessed October 15, 2026), "Jan Postma (1890-????)".
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