The temperature on January 18, 1961 was between -3.8 °C and 0.2 °C and averaged -2.2 °C. There was 5.5 hours of sunshine (66%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
March 30 » The Single Convention on Narcotic Drugs is signed in New York City.
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.
May 1 » The Prime Minister of Cuba, Fidel Castro, proclaims Cuba a socialist nation and abolishes elections.
September 10 » In the Italian Grand Prix, a crash causes the death of German Formula One driver Wolfgang von Trips and 13 spectators who are hit by his Ferrari, the deadliest accident in F1 history.
October 20 » The Soviet Union performs the first armed test of a submarine-launched ballistic missile, launching an R-13 from a Golf-class submarine.
December 17 » Niterói circus fire: Fire breaks out during a performance by the Gran Circus Norte-Americano in the city of Niterói, Rio de Janeiro, Brazil, killing more than 500.
When copying data from this family tree, please include a reference to the origin: Nieko Dijkstra, "Family tree Dijkstra", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-dijkstra/I490.php : accessed March 11, 2026), "Dirk Marten Wierema (1961-)".
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