The temperature on March 17, 1961 was between 3.6 °C and 20.0 °C and averaged 12.0 °C. There was 9.1 hours of sunshine (76%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
March 24 » Quebec Board of the French Language is established.
April 8 » A large explosion on board the MVDara in the Persian Gulf kills 238.
April 25 » Robert Noyce is granted a patent for an integrated circuit.
July 25 » Cold War: In a speech John F. Kennedy emphasizes that any attack on Berlin is an attack on NATO.
August 13 » Cold War: East Germany closes the border between the eastern and western sectors of Berlin to thwart its inhabitants' attempts to escape to the West, and construction of the Berlin Wall is started.
September 18 » U.N. Secretary-General Dag Hammarskjöld dies in an air crash while attempting to negotiate peace in the Katanga region of the Democratic Republic of the Congo.
When copying data from this family tree, please include a reference to the origin: Leen Schaap, "Database Schaap", database, Genealogy Online (https://www.genealogieonline.nl/database-schaap/I5410.php : accessed May 2, 2025), "Briggitte van der Horst (1961-)".
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