February 14 » Voting machines are approved by the U.S. Congress for use in federal elections.
May 30 » Pearl Hart, a female outlaw of the Old West, robs a stage coach 30 miles southeast of Globe, Arizona.
June 12 » New Richmond tornado: The eighth deadliest tornado in U.S. history kills 117 people and injures around 200.
July 26 » Ulises Heureaux, the 27th President of the Dominican Republic, is assassinated.
September 13 » Mackinder, Ollier and Brocherel make the first ascent of Batian (5,199 m - 17,058ft), the highest peak of Mount Kenya.
Day of death July 1, 1961
The temperature on July 1, 1961 was between 15.2 °C and 31.5 °C and averaged 23.8 °C. There was 14.8 hours of sunshine (89%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. 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.
April 11 » The trial of Adolf Eichmann begins in Jerusalem.
April 30 » K-19, the first Soviet nuclear submarine equipped with nuclear missiles, is commissioned.
May 21 » American civil rights movement: Alabama Governor John Malcolm Patterson declares martial law in an attempt to restore order after race riots break out.
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.
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: Eric Brouwer, "Family tree Brouwer - Koster", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eric-brouwer/I34643.php : accessed January 21, 2026), "Petrus Hendrikus Cliteur (1899-1961)".
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