The temperature on November 20, 1956 was between -2.2 °C and 3.2 °C and averaged 0.5 °C. There was 4.7 hours of sunshine (55%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
April 26 » SSIdeal X, the world's first successful container ship, leaves Port Newark, New Jersey, for Houston, Texas.
May 20 » In Operation Redwing, the first United States airborne hydrogen bomb is dropped over Bikini Atoll in the Pacific Ocean.
September 13 » The dike around the Dutch polder East Flevoland is closed.
October 28 » Elvis Presley receives a polio vaccination on national TV.
November 1 » The Springhill mining disaster in Springhill, Nova Scotia kills 39 miners; 88 are rescued.
November 4 » Soviet troops enter Hungary to end the Hungarian revolution against the Soviet Union that started on October 23. Thousands are killed, more are wounded, and nearly a quarter million leave the country.
When copying data from this family tree, please include a reference to the origin: Louis Kramer, "Kramer Family Tree", database, Genealogy Online (https://www.genealogieonline.nl/kramer_stamboom/I603545.php : accessed January 3, 2026), "Isa Yvonne Rolandsson (1956-2021)".
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