The temperature on June 7, 1957 was between 6.1 °C and 18.0 °C and averaged 12.9 °C. There was 0.7 mm of rain during 0.6 hours. There was 3.3 hours of sunshine (20%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
March 9 » The 8.6 Mw Andreanof Islands earthquake shakes the Aleutian Islands, causing over $5 million in damage from ground movement and a destructive tsunami.
April 10 » The Suez Canal is reopened for all shipping after being closed for three months.
July 29 » The International Atomic Energy Agency is established.
October 10 » The Windscale fire results in Britain's worst nuclear accident.
October 10 » U.S. President Eisenhower apologizes to Ghanaian finance minister Gbedemah after he is refused service in a Delaware restaurant.
November 8 » Operation Grapple X, Round C1: The United Kingdom conducts its first successful hydrogen bomb test over Kiritimati in the Pacific.
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/I10406.php : accessed January 23, 2026), "Helena Petronella Pieters (1873-1957)".
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