The temperature on May 22, 1915 was between 13.2 °C and 25.8 °C and averaged 19.4 °C. There was 10.4 hours of sunshine (65%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. 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.
January 26 » The Rocky Mountain National Park is established by an act of the U.S. Congress.
March 20 » Albert Einstein publishes his general theory of relativity.
July 1 » Leutnant Kurt Wintgens of the then-named German Deutsches Heer's Fliegertruppe army air service achieves the first known aerial victory with a synchronized machine-gun armed fighter plane, the Fokker M.5K/MG Eindecker.
July 16 » Henry James becomes a British citizen to highlight his commitment to Britain during the first World War.
July 25 » RFC Captain Lanoe Hawker becomes the first British pursuit aviator to earn the Victoria Cross.
October 13 » First World War: The Battle of the Hohenzollern Redoubt marks the end of the Battle of Loos.
Day of marriage August 30, 1945
The temperature on August 30, 1945 was between 13.1 °C and 17.8 °C and averaged 15.4 °C. There was 11.7 mm of rain during 6.3 hours. There was 0.3 hours of sunshine (2%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-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).
April 18 » Over 1,000 bombers attack the small island of Heligoland, Germany.
April 29 » World War II: Airdrops of food begin over German-occupied regions of the Netherlands.
May 8 » The Halifax riot starts when thousands of civilians and servicemen rampage through Halifax, Nova Scotia.
July 26 » World War II: HMSVestal is the last British Royal Navy ship to be sunk in the war.
August 9 » The Red Army invades Japanese-occupied Manchuria.
August 16 » The National Representatives' Congress, the precursor of the current National Assembly of Vietnam, convenes in Sơn Dương.
Day of death July 3, 1989
The temperature on July 3, 1989 was between 12.1 °C and 23.4 °C and averaged 18.1 °C. There was 14.2 hours of sunshine (85%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the 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.
March 2 » Twelve European Community nations agree to ban the production of all chlorofluorocarbons (CFCs) by the end of the century.
April 15 » Upon Hu Yaobang's death, the Tiananmen Square protests of 1989 begin in China.
May 30 » Tiananmen Square protests of 1989: The 10-metre high "Goddess of Democracy" statue is unveiled in Tiananmen Square by student demonstrators.
September 11 » Hungary announces that the East German refugees who had been housed in temporary camps were free to leave for West Germany.
October 19 » The convictions of the Guildford Four are quashed by the Court of Appeal of England and Wales, after they had spent 15 years in 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.
When copying data from this family tree, please include a reference to the origin: P. Joon, "Family tree Joon", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-joon/I523.php : accessed January 24, 2026), "Hendrik Willem "Henk" Joon (1915-1989)".
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