The temperature on January 31, 1931 was between -0.4 °C and 1.5 °C and averaged 0.7 °C. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. 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 13 » The British Raj completes its transfer from Calcutta to New Delhi.
February 20 » The U.S. Congress approves the construction of the San Francisco–Oakland Bay Bridge by the state of California.
March 11 » Ready for Labour and Defence of the USSR, abbreviated as GTO, is introduced in the Soviet Union.
March 15 » SSViking explodes off Newfoundland, killing 27 of the 147 on board.
September 30 » Start of "Die Voortrekkers" youth movement for Afrikaners in Bloemfontein, South Africa.
October 21 » A secret society in the Imperial Japanese Army launches an abortive coup d'état attempt.
Day of marriage April 12, 1956
The temperature on April 12, 1956 was between -1.7 °C and 11.1 °C and averaged 6.0 °C. There was 3.3 mm of rain during 4.0 hours. There was 7.7 hours of sunshine (56%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
January 1 » Sudan achieves independence from Egypt and the United Kingdom.
May 1 » The polio vaccine developed by Jonas Salk is made available to the public.
May 20 » In Operation Redwing, the first United States airborne hydrogen bomb is dropped over Bikini Atoll in the Pacific Ocean.
October 17 » The first commercial nuclear power station is officially opened by Queen Elizabeth II in Sellafield, England.
November 12 » Morocco, Sudan and Tunisia join the United Nations.
December 19 » Irish-born physician John Bodkin Adams is arrested in connection with the suspicious deaths of more than 160 patients. Eventually he is convicted only of minor charges.
Day of death August 10, 1989
The temperature on August 10, 1989 was between 13.8 °C and 27.4 °C and averaged 19.3 °C. There was 1.2 mm of rain during 0.9 hours. There was 8.5 hours of sunshine (57%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from Tuesday, November 4, 1986 to Tuesday, November 7, 1989 the cabinet Lubbers II, with Drs. R.F.M. Lubbers (CDA) as prime minister.
In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
January 20 » George H. W. Bush is inaugurated the 41st President of the United States of America.
May 12 » The San Bernardino train disaster kills four people. A week later an underground gasoline pipeline explodes killing two more people.
August 8 » Space Shuttle program: STS-28 Mission: Space Shuttle Columbia takes off on a secret five-day military mission.
October 15 » Eight of those convicted in the Rivonia Trial are released from prison.
November 20 » Velvet Revolution: The number of protesters assembled in Prague, Czechoslovakia swells from 200,000 the day before to an estimated half-million.
December 16 » Romanian Revolution: Protests break out in Timișoara, Romania, in response to an attempt by the government to evict dissident Hungarian pastor László Tőkés.
When copying data from this family tree, please include a reference to the origin: Arie Verloop, "Family tree Verloop", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-verloop/I2273.php : accessed October 23, 2026), "Willem KLERK (1931-1989)".
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