The temperature on May 18, 1961 was between 7.9 °C and 14.9 °C and averaged 11.6 °C. There was 14.2 hours of sunshine (90%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
March 9 » Sputnik 9 successfully launches, carrying a dog and a human dummy, and demonstrating that the Soviet Union was ready to begin human spaceflight.
May 19 » At Silchar Railway Station, Assam, 11 Bengalis die when police open fire on protesters demanding state recognition of Bengali language in the Bengali Language Movement.
July 23 » The Sandinista National Liberation Front is founded in Nicaragua.
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.
August 11 » The former Portuguese territories in India of Dadra and Nagar Haveli are merged to create the Union Territory Dadra and Nagar Haveli.
October 1 » East and West Cameroon merge to form the Federal Republic of Cameroon.
When copying data from this family tree, please include a reference to the origin: Michael Jacobs, "Family tree Jacobs", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-michael-jacobs/I52264.php : accessed May 10, 2025), "Marja Sluiter (1961-)".
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