The temperature on April 18, 1955 was between 2.2 °C and 11.1 °C and averaged 6.6 °C. There was 9.6 hours of sunshine (68%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
May 5 » The General Treaty, by which France, Britain and the United States recognize the sovereignty of West Germany, comes into effect.
May 25 » First ascent of Mount Kangchenjunga: A British expedition led by Charles Evans, Joe Brown and George Band reaches the summit of the third-highest mountain in the world (8,586 meters); Norman Hardie and Tony Streather join them the following day.
September 16 » The military coup to unseat President Juan Perón of Argentina is launched at midnight.
October 29 » The Soviet battleshipNovorossiysk strikes a World War II mine in the harbor at Sevastopol.
November 5 » After being destroyed in World War II, the rebuilt Vienna State Opera reopens with a performance of Beethoven's Fidelio.
December 20 » Cardiff is proclaimed the capital city of Wales, United Kingdom.
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/I323025.php : accessed March 15, 2026), "N.N. Wirken (1955-1955)".
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