The temperature on December 30, 1960 was between -1.1 °C and 4.0 °C and averaged 1.7 °C. There was 4.4 mm of rain during 4.6 hours. There was 0.4 hours of sunshine (5%). The almost completely overcast was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
January 19 » Japan and the United States sign the US–Japan Mutual Security Treaty
May 3 » The Anne Frank House museum opens in Amsterdam, Netherlands.
May 22 » The Great Chilean earthquake, measuring 9.5 on the moment magnitude scale, hits southern Chile, becoming the most powerful earthquake ever recorded.
August 5 » Burkina Faso, then known as Upper Volta, becomes independent from France.
August 12 » Echo 1A, NASA's first successful communications satellite, is launched.
December 14 » Convention against Discrimination in Education of UNESCO is adopted.
When copying data from this family tree, please include a reference to the origin: Con van Staa, "Family tree of Staa", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-staa/I314.php : accessed March 4, 2026), "Frederik Willem Arend Leonard van Staa (-1960)".
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