The temperature on June 21, 1956 was between 8.3 °C and 15.6 °C and averaged 12.1 °C. There was 7.0 hours of sunshine (42%). The partly or heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
January 26 » Soviet Union cedes Porkkala back to Finland.
April 5 » Cuban Revolution: Fidel Castro declares himself at war with Cuban President Fulgencio Batista.
June 30 » A TWA Super Constellation and a United Airlines DC-7 collide above the Grand Canyon in Arizona and crash, killing all 128 on board both airliners.
July 13 » The Dartmouth workshop is the first conference on artificial intelligence.
October 15 » FORTRAN, the first modern computer language, is first shared with the coding community.
December 4 » The Million Dollar Quartet (Elvis Presley, Jerry Lee Lewis, Carl Perkins, and Johnny Cash) get together at Sun Studio for the first and last time.
When copying data from this family tree, please include a reference to the origin: J Eijsermans, "Eijsermans family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijsermans/I213655.php : accessed February 16, 2026), "N.N. Graafmans (1956-1956)".
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