The temperature on February 14, 1921 was between 0.8 °C and 8.7 °C and averaged 5.2 °C. There was 2.1 mm of rain. There was 4.1 hours of sunshine (42%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
March 1 » Following mass protests in Petrograd demanding greater freedom in the RSFSR, the Kronstadt rebellion began, with sailors and citizens taking up arms against the Bolsheviks.
March 18 » The Kronstadt rebellion is suppressed by the Red Army.
May 19 » The United States Congress passes the Emergency Quota Act establishing national quotas on immigration.
July 11 » The Red Army captures Mongolia from the White Army and establishes the Mongolian People's Republic.
September 21 » A storage silo in Oppau, Germany, explodes, killing 500–600 people.
November 14 » The Communist Party of Spain is founded, and issues the first edition of Mundo obrero.
Day of death April 17, 1967
The temperature on April 17, 1967 was between 1.8 °C and 15.7 °C and averaged 9.5 °C. There was 0.1 mm of rain. There was 7.5 hours of sunshine (54%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
January 15 » The first Super Bowl is played in Los Angeles. The Green Bay Packers defeat the Kansas City Chiefs 35–10.
January 23 » Diplomatic relations between the Soviet Union and Ivory Coast are established.
January 23 » Milton Keynes (England) is founded as a new town by Order in Council, with a planning brief to become a city of 250,000 people. Its initial designated area enclosed three existing towns and twenty one villages. The area to be developed was largely farmland, with evidence of continuous settlement dating back to the Bronze Age.
April 29 » After refusing induction into the United States Army the previous day, Muhammad Ali is stripped of his boxing title.
December 3 » At Groote Schuur Hospital in Cape Town, South Africa, a transplant team headed by Christiaan Barnard carries out the first heart transplant on a human (53-year-old Louis Washkansky).
December 4 » Vietnam War: U.S. and South Vietnamese forces engage Viet Cong troops in the Mekong Delta.
When copying data from this family tree, please include a reference to the origin: Hendrik de Graaf, "Family tree Plugboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plugboer/I6205.php : accessed January 30, 2026), "Cent Breure (1921-1967)".
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