The temperature on July 17, 1957 was between 8.7 °C and 21.7 °C and averaged 16.4 °C. There was 0.7 mm of rain during 0.6 hours. There was 9.7 hours of sunshine (60%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
January 23 » American inventor Walter Frederick Morrison sells the rights to his flying disc to the Wham-O toy company, which later renames it the "Frisbee".
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.
February 18 » Walter James Bolton becomes the last person legally executed in New Zealand.
July 6 » Althea Gibson wins the Wimbledon championships, becoming the first black athlete to do so.
October 10 » The Windscale fire results in Britain's worst nuclear accident.
December 6 » Project Vanguard: A launchpad explosion of Vanguard TV3 thwarts the first United States attempt to launch a satellite into Earth orbit.
When copying data from this family tree, please include a reference to the origin: Leen Schaap, "Database Schaap", database, Genealogy Online (https://www.genealogieonline.nl/database-schaap/I7676.php : accessed February 10, 2026), "Willemina Overgoor (1870-1957)".
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