The temperature on April 4, 1925 was between -1.4 °C and 10.1 °C and averaged 5.2 °C. There was 9.1 hours of sunshine (69%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
In The Netherlands , there was from August 4, 1925 to March 8, 1926 the cabinet Colijn I, with Dr. H. Colijn (ARP) as prime minister.
May 14 » Virginia Woolf's novel Mrs Dalloway is published.
May 15 » Al-Insaniyyah, the first Arabic communist newspaper, is founded.
July 21 » Scopes Trial: In Dayton, Tennessee, high school biology teacher John T. Scopes is found guilty of teaching human evolution in class and fined $100.
July 25 » Telegraph Agency of the Soviet Union (TASS) is established.
August 5 » Plaid Cymru is formed with the aim of disseminating knowledge of the Welsh language that is at the time in danger of dying out.
December 11 » Roman Catholic papal encyclical Quas primas introduces the Feast of Christ the King.
Day of marriage July 6, 1949
The temperature on July 6, 1949 was between 10.3 °C and 18.8 °C and averaged 13.8 °C. There was 0.2 mm of rain during 0.1 hours. There was 6.6 hours of sunshine (40%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-northwest. 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).
January 26 » The Hale telescope at Palomar Observatory sees first light under the direction of Edwin Hubble, becoming the largest aperture optical telescope (until BTA-6 is built in 1976).
March 10 » Mildred Gillars ("Axis Sally") is convicted of treason.
April 1 » Chinese Civil War: The Chinese Communist Party holds unsuccessful peace talks with the Nationalist Party in Beijing, after three years of fighting.
April 18 » The Republic of Ireland Act comes into effect.
May 9 » Rainier III becomes Prince of Monaco.
August 31 » The retreat of the Democratic Army of Greece in Albania after its defeat on Gramos mountain marks the end of the Greek Civil War.
Day of death September 19, 1989
The temperature on September 19, 1989 was between 10.5 °C and 19.9 °C and averaged 16.3 °C. There was 4.7 mm of rain during 5.4 hours. There was 1.8 hours of sunshine (14%). 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 8 » Kegworth air disaster: British Midland Flight 92, a Boeing 737-400, crashes into the M1 motorway, killing 47 of the 126 people on board.
February 3 » A military coup overthrows Alfredo Stroessner, dictator of Paraguay since 1954.
March 12 » Sir Tim Berners-Lee submits his proposal to CERN for an information management system, which subsequently develops into the world wide web.
March 19 » The Egyptian flag is raised at Taba, marking the end of Israeli occupation since the Six Days War in 1967 and the Egypt–Israel Peace Treaty in 1979.
April 26 » The deadliest known tornado strikes Central Bangladesh, killing upwards of 1,300, injuring 12,000, and leaving as many as 80,000 homeless.
September 13 » Largest anti-Apartheid march in South Africa, led by Desmond Tutu.
Day of burial September 23, 1989
The temperature on September 23, 1989 was between 13.7 °C and 17.4 °C and averaged 15.3 °C. There was 0.1 mm of rain during 0.1 hours. There was 0.3 hours of sunshine (2%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-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.
February 3 » A military coup overthrows Alfredo Stroessner, dictator of Paraguay since 1954.
February 6 » The Round Table Talks start in Poland, thus marking the beginning of the overthrow of communism in Eastern Europe.
May 2 » Cold War: Hungary begins dismantling its border fence with Austria, which allows a number of East Germans to defect.
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 6 » The École Polytechnique massacre (or Montreal Massacre): Marc Lépine, an anti-feminist gunman, murders 14 young women at the École Polytechnique in Montreal.
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: Van Knippenberg, "Family tree Van Knippenberg", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-knippenberg/I1242.php : accessed February 16, 2026), "Petrus Gerardus Hubertus (Piet) Knippenberg (1925-1989)".
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