The temperature on September 20, 1957 was between 7.4 °C and 17.1 °C and averaged 12.4 °C. There was 9.2 hours of sunshine (74%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
January 14 » Kripalu Maharaj was named fifth Jagadguru (world teacher) after giving seven days of speeches before 500 Hindu scholars.
January 31 » Eight people (5 total crew from 2 aircraft and 3 on the ground) in Pacoima, California are killed following the mid-air collision between a Douglas DC-7 airliner and a Northrop F-89 Scorpion fighter jet.
March 4 » The S&P 500 stock market index is introduced, replacing the S&P 90.
July 1 » The International Geophysical Year begins.
September 4 » The Ford Motor Company introduces the Edsel.
November 14 » The "Apalachin Meeting" in rural Tioga County in upstate New York is raided by law enforcement; many high level Mafia figures are arrested while trying to flee.
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/I20916.php : accessed January 31, 2026), "William David Dreyer (1957-1957)".
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