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
February 18 » Kenyan rebel leader Dedan Kimathi is executed by the British colonial government.
April 11 » United Kingdom agrees to Singaporean self-rule.
July 11 » Prince Karim Husseini Aga Khan IV inherits the office of Imamat as the 49th Imam of Shia Imami Ismai'li worldwide, after the death of Sir Sultan Mahommed Shah Aga Khan III.
August 1 » The United States and Canada form the North American Aerospace Defense Command (NORAD).
August 28 » U.S. Senator Strom Thurmond begins a filibuster to prevent the Senate from voting on Civil Rights Act of 1957; he stopped speaking 24 hours and 18 minutes later, the longest filibuster ever conducted by a single Senator.
November 8 » Pan Am Flight 7 disappears between San Francisco and Honolulu. Wreckage and bodies are discovered a week later.
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 5, 2026), "Jacob Gustav Letterstedt Dreyer (1885-1957)".
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