February 9 » The Davis Cup competition is established.
March 24 » Mayor of New York City Robert Anderson Van Wyck breaks ground for a new underground "Rapid Transit Railroad" that would link Manhattan and Brooklyn.
May 24 » Second Boer War: The United Kingdom annexes the Orange Free State.
June 20 » Baron Eduard Toll, leader of the Russian Polar Expedition of 1900, departs Saint Petersburg in Russia on the explorer ship Zarya, never to return.
July 2 » Jean Sibelius' Finlandia receives its première performance in Helsinki with the Helsinki Philharmonic Society conducted by Robert Kajanus.
October 9 » The Cook Islands become a territory of the United Kingdom.
Day of marriage February 17, 1927
The temperature on February 17, 1927 was between 4.4 °C and 7.3 °C and averaged 5.3 °C. There was 1.0 mm of rain. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
February 23 » German theoretical physicist Werner Heisenberg writes a letter to fellow physicist Wolfgang Pauli, in which he describes his uncertainty principle for the first time.
April 23 » Cardiff City defeat Arsenal in the FA Cup Final, the only time it has been won by a team not based in England.
May 9 » Old Parliament House, Canberra officially opens.
May 18 » The Bath School disaster: Forty-five people, including many children, are killed by bombs planted by a disgruntled school-board member in Michigan.
August 19 » Patriarch Sergius of Moscow proclaims the declaration of loyalty of the Russian Orthodox Church to the Soviet Union.
September 7 » The first fully electronic television system is achieved by Philo Farnsworth.
Day of death April 4, 1990
The temperature on April 4, 1990 was between -0.6 °C and 8.6 °C and averaged 3.7 °C. There was 3.4 mm of rain during 1.2 hours. There was 7.6 hours of sunshine (58%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
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 » Nelson Mandela is elected deputy President of the African National Congress.
April 9 » An IRA bombing in County Down, Northern Ireland, kills three members of the UDR.
May 30 » Croatian Parliament is constituted after the first free, multi-party elections, today celebrated as the National Day of Croatia.
June 30 » East Germany and West Germany merge their economies.
August 23 » West and East Germany announce that they will reunite on October 3.
September 16 » The railroad between the People's Republic of China and Kazakhstan is completed at Dostyk, adding a sizable link to the concept of the Eurasian Land Bridge.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I169282.php : accessed October 9, 2026), "Sytze Terpstra (1900-1990)".
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