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.
March 15 » SSViking explodes off Newfoundland, killing 27 of the 147 on board.
March 31 » An earthquake in Nicaragua destroys Managua; killing 2,000.
May 29 » Michele Schirru, a citizen of the United States, is executed by Italian military firing squad for intent to kill Benito Mussolini.
July 1 » Wiley Post and Harold Gatty become the first people to circumnavigate the globe in a single-engined monoplane aircraft.
October 17 » Al Capone is convicted of income tax evasion.
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
April 19 » Actress Grace Kelly marries Prince Rainier of Monaco.
June 11 » Start of Gal Oya riots, the first reported ethnic riots that target minority Sri Lankan Tamils in the Eastern Province. The total number of deaths is reportedly 150.
June 28 » in Poznań, workers from HCP factory go to the streets, sparking one of the first major protests against communist government both in Poland and Europe.
July 26 » Following the World Bank's refusal to fund building the Aswan Dam, Egyptian leader Gamal Abdel Nasser nationalizes the Suez Canal, sparking international condemnation.
October 15 » FORTRAN, the first modern computer language, is first shared with the coding community.
October 17 » Bobby Fischer defeats Donald Byrne in the chess Game of the Century.
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 4 » Second Gulf of Sidra incident: A pair of Libyan MiG-23 "Floggers" are shot down by a pair of US Navy F-14 Tomcats during an air-to-air confrontation.
February 3 » After a stroke two weeks previously, South African President P. W. Botha resigns as leader of the National Party, but stays on as president for six more months.
May 12 » The San Bernardino train disaster kills four people. A week later an underground gasoline pipeline explodes killing two more people.
October 17 » The East German Politburo votes to remove Erich Honecker from his role as General Secretary.
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 13 » The Troubles: Attack on Derryard checkpoint: The Provisional Irish Republican Army launches an attack on a British Army temporary vehicle checkpoint near Rosslea, Northern Ireland. Two British soldiers are killed and two others are wounded.
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 22, 2026), "Willem KLERK (1931-1989)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.