The temperature on February 28, 1957 was between -2.9 °C and 7.4 °C and averaged 2.3 °C. There was 8.9 hours of sunshine (83%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
February 22 » Ngô Đình Diệm of South Vietnam survives a communist shooting assassination attempt in Buôn Ma Thuột.
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 5 » In India, Communists win the first elections in united Kerala and E. M. S. Namboodiripad is sworn in as the first Chief Minister.
June 24 » In Roth v. United States, the U.S. Supreme Court rules that obscenity is not protected by the First Amendment.
July 6 » Althea Gibson wins the Wimbledon championships, becoming the first black athlete to do so.
September 2 » President Ngô Đình Diệm of South Vietnam becomes the first foreign head of state to make a state visit to Australia.
When copying data from this family tree, please include a reference to the origin: Bert Visscher, "Family tree van Bert Visscher ", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-visscher-en-aanverwanten/I1912.php : accessed May 31, 2024), "Gretha Visscher (1957-)".
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