February 14 » Voting machines are approved by the U.S. Congress for use in federal elections.
May 8 » The Irish Literary Theatre in Dublin produced its first play.
July 26 » Ulises Heureaux, the 27th President of the Dominican Republic, is assassinated.
July 29 » The First Hague Convention is signed.
September 23 » The American Asiatic Squadron destroys a Filipino battery at the Battle of Olongapo.
October 11 » The Second Boer War erupts in South Africa between the British-ruled Cape Colony, and the Boer-ruled Transvaal and Orange Free State.
Day of death June 12, 1956
The temperature on June 12, 1956 was between 11.6 °C and 17.8 °C and averaged 13.9 °C. There was 5.6 hours of sunshine (34%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
May 1 » A doctor in Japan reports an "epidemic of an unknown disease of the central nervous system", marking the official discovery of Minamata disease.
July 25 » Forty-five miles south of Nantucket Island, the Italian ocean liner SSAndrea Doria collides with the MSStockholm in heavy fog and sinks the next day, killing 51.
September 9 » Elvis Presley appears on The Ed Sullivan Show for the first time.
October 21 » The Mau Mau Uprising in Kenya is defeated.
November 7 » Suez Crisis: The United Nations General Assembly adopts a resolution calling for the United Kingdom, France and Israel to immediately withdraw their troops from Egypt.
December 19 » Irish-born physician John Bodkin Adams is arrested in connection with the suspicious deaths of more than 160 patients. Eventually he is convicted only of minor charges.
When copying data from this family tree, please include a reference to the origin: Willem Dijkhuizen, "Family tree Dijkhuizen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-dijkhuizen/I3167.php : accessed January 15, 2026), "Petronella Cornelisd. Zwart (1899-1956)".
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