The temperature on May 31, 1931 was between 8.7 °C and 15.9 °C and averaged 12.6 °C. There was 7.1 mm of rain during 3.5 hours. There was 2.2 hours of sunshine (13%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 20 » The U.S. Congress approves the construction of the San Francisco–Oakland Bay Bridge by the state of California.
March 31 » An earthquake in Nicaragua destroys Managua; killing 2,000.
July 1 » Wiley Post and Harold Gatty become the first people to circumnavigate the globe in a single-engined monoplane aircraft.
September 18 » The Mukden Incident gives Japan a pretext to invade and occupy Manchuria.
November 22 » Al-Mina'a SC is founded in Iraq.
December 5 » Cathedral of Christ the Saviour in Moscow was destroyed on orders from Joseph Stalin.
Day of marriage August 29, 1950
The temperature on August 29, 1950 was between 11.5 °C and 18.1 °C and averaged 15.4 °C. There was 8.1 mm of rain during 2.4 hours. There was 8.9 hours of sunshine (64%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
March 12 » The Llandow air disaster kills 80 people when the aircraft they are travelling in crashes near Sigingstone, Wales. At the time this was the world's deadliest air disaster.
May 9 » Robert Schuman presents his proposal on the creation of an organized Europe, which according to him was indispensable to the maintenance of peaceful relations. This proposal, known as the "Schuman Declaration", is considered by some people to be the beginning of the creation of what is now the European Union.
July 20 » Cold War: In Philadelphia, Harry Gold pleads guilty to spying for the Soviet Union by passing secrets from atomic scientist Klaus Fuchs.
October 19 » Iran becomes the first country to accept technical assistance from the United States under the Point Four Program.
November 19 » US General Dwight D. Eisenhower becomes Supreme Commander of NATO-Europe.
December 17 » The F-86 Sabre's first mission over Korea.
Day of death March 12, 2014
The temperature on March 12, 2014 was between 1.8 °C and 16.8 °C and averaged 8.3 °C. There was 10.5 hours of sunshine (91%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
In The Netherlands , there was from Monday, November 5, 2012 to Thursday, October 26, 2017 the cabinet Rutte II, with Mark Rutte (VVD) as prime minister.
February 22 » President Viktor Yanukovych of Ukraine is impeached by the Verkhovna Rada of Ukraine by a vote of 328–0, fulfilling a major goal of the Euromaidan rebellion.
March 12 » A gas explosion in the New York City neighborhood of East Harlem kills eight and injures 70 others.
July 17 » A French regional train on the Pau-Bayonne line crashes into a high-speed train near the town of Denguin, resulting in at least 25 injuries.
November 21 » A stampede in Kwekwe, Zimbabwe caused by the police firing tear gas kills at least eleven people and injures 40 others.
December 15 » A gunman takes 18 hostages inside a café in Martin Place for 16 hours in Sydney. Monis and two hostages are killed when police raid the café the following morning.
December 28 » Indonesia AirAsia Flight 8501 crashes into the Karimata Strait en route from Surabaya to Singapore, killing all 162 people aboard.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I488341.php : accessed January 28, 2026), "Shirley Ploegstra (1931-2014)".
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