The temperature on September 11, 1961 was between 10.1 °C and 19.7 °C and averaged 14.7 °C. There was 0.2 mm of rain during 0.2 hours. There was 1.6 hours of sunshine (12%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
February 12 » The Soviet Union launches Venera 1 towards Venus.
March 1 » Uganda becomes self-governing and holds its first elections.
April 9 » The Pacific Electric Railway in Los Angeles, once the largest electric railway in the world, ends operations.
June 4 » Cold War: In the Vienna summit, the Soviet premier Nikita Khrushchev sparks the Berlin Crisis by threatening to sign a separate peace treaty with East Germany and ending American, British and French access to East Berlin.
September 17 » The world's first retractable roof stadium, the Civic Arena, opens in Pittsburgh, Pennsylvania.
October 30 » The Soviet Union detonates the Tsar Bomba, the most powerful explosive device ever detonated.
When copying data from this family tree, please include a reference to the origin: Mark Apeldoorn, "Mark Apeldoorn Family Tree", database, Genealogy Online (https://www.genealogieonline.nl/mark-apeldoorn-family-tree/P437.php : accessed May 11, 2025), "Berend (Jans) Apeldoorn (± 1892-1961)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.