April 18 » The Greco-Turkish War is declared between Greece and the Ottoman Empire.
June 16 » A treaty annexing the Republic of Hawaii to the United States is signed; the Republic would not be dissolved until a year later.
August 21 » Oldsmobile, an American automobile manufacturer and marque, is founded.
August 31 » Thomas Edison patents the Kinetoscope, the first movie projector.
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
September 11 » After months of pursuit, generals of Menelik II of Ethiopia capture Gaki Sherocho, the last king of Kaffa, bringing an end to that ancient kingdom.
Day of marriage November 11, 1921
The temperature on November 11, 1921 was between -3.5 and 4.2 °C. There was 4.9 hours of sunshine (54%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
March 18 » The second Peace of Riga is signed between Poland and the Soviet Union.
March 21 » The New Economic Policy is implemented by the Bolshevik Party in response to the economic failure as a result of war communism.
June 15 » Bessie Coleman earns her pilot's license, becoming the first female pilot of African-American descent.
August 14 » Tannu Uriankhai, later Tuvan People's Republic is established as a completely independent country (which is supported by Soviet Russia).
November 4 » Japanese Prime Minister Hara Takashi is assassinated in Tokyo.
December 6 » The Anglo-Irish Treaty is signed in London by British and Irish representatives.
Day of death October 23, 1988
The temperature on October 23, 1988 was between 6.6 °C and 12.9 °C and averaged 9.9 °C. The heavily clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the south east. 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.
January 28 » In R v Morgentaler the Supreme Court of Canada strikes down all anti-abortion laws.
May 14 » Carrollton bus collision: A drunk driver traveling the wrong way on Interstate 71 near Carrollton, Kentucky hits a converted school bus carrying a church youth group. Twenty-seven die in the crash and ensuing fire.
October 5 » A Chilean opposition coalition defeats Augusto Pinochet in his re-election attempt.
November 15 » In the Soviet Union, the unmanned Shuttle Buran makes its only space flight.
December 1 » World AIDS Day was proclaimed worldwide by the UN member states.
December 2 » Benazir Bhutto is sworn in as Prime Minister of Pakistan, becoming the first woman to head the government of an Islam-dominated state.
When copying data from this family tree, please include a reference to the origin: Janet Westerhof, "Family tree Westerhof", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-westerhof/R3.php : accessed December 31, 2025), "Jan Sikke Westerhof (1897-1988)".
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