The temperature on May 27, 1961 was between 3.3 °C and 11.7 °C and averaged 7.5 °C. There was 1.8 mm of rain during 2.2 hours. There was 5.6 hours of sunshine (35%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
January 8 » In France a referendum supports Charles de Gaulle's policies in Algeria.
January 27 » The Soviet submarine S-80 sinks when its snorkel malfunctions, flooding the boat.
February 4 » The Angolan War of Independence and the greater Portuguese Colonial War begin.
April 12 » Cold War: Space Race: The Soviet cosmonaut Yuri Gagarin becomes the first human to travel into outer space and perform the first manned orbital flight, Vostok 1.
April 30 » K-19, the first Soviet nuclear submarine equipped with nuclear missiles, is commissioned.
May 9 » FCC Chairman Newton N. Minow gives his Wasteland Speech.
Day of burial May 31, 1961
The temperature on May 31, 1961 was between 8.4 °C and 12.7 °C and averaged 10.5 °C. There was 0.9 mm of rain during 2.4 hours. There was -0.1 hours of sunshine (0%). The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. 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.
January 27 » The Soviet submarine S-80 sinks when its snorkel malfunctions, flooding the boat.
March 14 » A USAF B-52 bomber crashes near near Yuba City, California whilst carrying nuclear weapons.
March 24 » Quebec Board of the French Language is established.
May 5 » Alan Shepard becomes the first American to travel into outer space, on a sub-orbital flight.
August 10 » Vietnam War: The U.S. Army begins Operation Ranch Hand, spraying an estimated 20million US gallons (76,000m) of defoliants and herbicides over rural areas of South Vietnam in an attempt to deprive the Viet Cong of food and vegetation cover.
When copying data from this family tree, please include a reference to the origin: Louis Kramer, "Kramer Family Tree", database, Genealogy Online (https://www.genealogieonline.nl/kramer_stamboom/I530964.php : accessed January 24, 2026), "Marten Michiels Klopstra (1877-1961)".
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