The temperature on April 18, 1961 was between 5.5 °C and 15.2 °C and averaged 10.3 °C. There was 11.7 hours of sunshine (83%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
January 3 » A protest by agricultural workers in Baixa de Cassanje, Portuguese Angola, turns into a revolt, opening the Angolan War of Independence, the first of the Portuguese Colonial Wars.
April 8 » A large explosion on board the MVDara in the Persian Gulf kills 238.
May 19 » Venera program: Venera 1 becomes the first man-made object to fly by another planet by passing Venus (the probe had lost contact with Earth a month earlier and did not send back any data).
May 24 » American civil rights movement: Freedom Riders are arrested in Jackson, Mississippi, for "disturbing the peace" after disembarking from their bus.
September 16 » Typhoon Nancy, with possibly the strongest winds ever measured in a tropical cyclone, makes landfall in Osaka, Japan, killing 173 people.
October 27 » NASA tests the first Saturn I rocket in Mission Saturn-Apollo 1.
When copying data from this family tree, please include a reference to the origin: Jentje de Swart, "Famylje De Swart -- Wijmenga", database, Genealogy Online (https://www.genealogieonline.nl/famylje-de-swart-wijmenga/I32521.php : accessed May 4, 2024), "Halma (1961-1961)".
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