The temperature on September 6, 1914 was between 7.3 °C and 22.3 °C and averaged 15.5 °C. There was 11.5 hours of sunshine (86%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
April 24 » The Franck–Hertz experiment, a pillar of quantum mechanics, is presented to the German Physical Society.
August 15 » World War I: Beginning of the Battle of Cer, the first Allied victory of World War I.
August 17 » World War I: Battle of Stallupönen: The German army of General Hermann von François defeats the Russian force commanded by Paul von Rennenkampf near modern-day Nesterov, Russia.
September 11 » World War I: Australia invades German New Guinea, defeating a German contingent at the Battle of Bita Paka.
September 22 » A German submarine sinks three British cruisers over a seventy-minute period, killing almost 1500 sailors.
October 27 » First World War: The new British battleship HMS Audacious is sunk by a minefield laid by the armed German merchant-cruiser Berlin.
Day of marriage November 29, 1945
The temperature on November 29, 1945 was between -0.2 °C and 8.1 °C and averaged 5.7 °C. There was 0.2 mm of rain. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
In The Netherlands , there was from February 23, 1945 to June 24, 1945 the cabinet Gerbrandy III, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
From June 24, 1945 till July 3, 1946 the Netherlands had a cabinet Schermerhorn - Drees with the prime ministers Prof. ir. W. Schermerhorn (VDB) and W. Drees (PvdA).
February 23 » World War II: During the Battle of Iwo Jima, a group of United States Marines reach the top of Mount Suribachi on the island and are photographed raising the American flag.
March 21 » World War II: Bulgaria and the Soviet Union successfully complete their defense of the north bank of the Drava River as the Battle of the Transdanubian Hills concludes.
April 18 » Over 1,000 bombers attack the small island of Heligoland, Germany.
April 29 » World War II: The Captain-class frigate HMS Goodall (K479) is torpedoed by U-286 outside the Kola Inlet becoming the last Royal Navy ship to be sunk in the European theatre of World War II.
June 20 » The United States Secretary of State approves the transfer of Wernher von Braun and his team of Nazi rocket scientists to the U.S. under Operation Paperclip.
September 5 » Cold War: Igor Gouzenko, a Soviet Union embassy clerk, defects to Canada, exposing Soviet espionage in North America, signalling the beginning of the Cold War.
Day of death May 18, 1989
The temperature on May 18, 1989 was between 9.6 °C and 25.9 °C and averaged 17.8 °C. There was 13.0 hours of sunshine (82%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. 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 1 » The Western Australian towns of Kalgoorlie and Boulder amalgamate to form the City of Kalgoorlie-Boulder.
April 2 » ASUS corporation is founded.
May 30 » Tiananmen Square protests of 1989: The 10-metre high "Goddess of Democracy" statue is unveiled in Tiananmen Square by student demonstrators.
September 8 » Partnair Flight 394 dives into the North Sea, killing 55 people. The investigation showed that the tail of the plane vibrated loose in flight due to sub-standard connecting bolts that had been fraudulently sold as aircraft-grade.
October 26 » China Airlines Flight 204 crashes after take off from Hualien Airport in Taiwan, killing all 54 people on board.
November 27 » Avianca Flight 203: A Boeing 727 explodes in mid-air over Colombia, killing all 107 people on board and three people on the ground. The Medellín Cartel will claim responsibility for the attack.
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/I7049.php : accessed February 5, 2026), "Johannes van Leijen (1914-1989)".
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.