The temperature on January 21, 1957 was between -0.5 °C and 1.8 °C and averaged 0.8 °C. The almost completely overcast was. The average windspeed was 5 Bft (very strong wind) and was prevailing from the south-southwest. Source: KNMI
March 25 » The European Economic Community is established with West Germany, France, Italy, Belgium, Netherlands and Luxembourg as the first members.
July 1 » The International Geophysical Year begins.
July 26 » Carlos Castillo Armas, dictator of Guatemala, is assassinated.
August 31 » The Federation of Malaya (now Malaysia) gains its independence from the United Kingdom.
November 1 » The Mackinac Bridge, the world's longest suspension bridge between anchorages at the time, opens to traffic connecting Michigan's upper and lower peninsulas.
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: Jan De Backer, "Family tree De Backer - Evers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-de-backer-evers/I564350.php : accessed March 6, 2026), "Petrus Antonius Verlijsdonk (1878-1957)".
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