The temperature on November 30, 1957 was between -3.1 °C and 2.8 °C and averaged -0.7 °C. There was 4.9 hours of sunshine (60%). The almost cloudless was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
March 17 » A plane crash in Cebu, Philippines kills Philippine President Ramon Magsaysay and 24 others.
May 15 » At Malden Island in the Pacific Ocean, Britain tests its first hydrogen bomb in Operation Grapple.
July 25 » The Tunisian King Muhammad VIII al-Amin is replaced by President Habib Bourguiba.
October 14 » At least 81 people are killed in the most devastating flood in the history of the Spanish city of Valencia.
November 8 » Operation Grapple X, Round C1: The United Kingdom conducts its first successful hydrogen bomb test over Kiritimati in the Pacific.
November 17 » Vickers Viscount G-AOHP of British European Airways crashes at Ballerup after the failure of three engines on approach to Copenhagen Airport. The cause is a malfunction of the anti-icing system on the aircraft. There are no fatalities.
When copying data from this family tree, please include a reference to the origin: Hendrik Dreyer, "Dreyer Tree", database, Genealogy Online (https://www.genealogieonline.nl/dreyer-tree/I14000.php : accessed February 6, 2026), "Jacob Gustav Letterstedt Dreyer (1885-1957)".
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