June 10 » Spanish–American War: In the Battle of Guantánamo Bay, U.S. Marines begin the American invasion of Spanish-held Cuba.
August 13 » Carl Gustav Witt discovers 433 Eros, the first near-Earth asteroid to be found.
August 24 » Count Muravyov, Foreign Minister of Russia presents a rescript that convoked the First Hague Peace Conference.
September 13 » Hannibal Goodwin patents celluloid photographic film.
October 1 » The Vienna University of Economics and Business Administration is founded under the name k.u.k. Exportakademie.
December 26 » Marie and Pierre Curie announce the isolation of radium.
Day of death March 30, 1989
The temperature on March 30, 1989 was between 5.6 °C and 16.1 °C and averaged 11.3 °C. There was 8.1 hours of sunshine (63%). The partly 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.
August 16 » A solar particle event affects computers at the Toronto Stock Exchange, forcing a halt to trading.
August 19 » Polish president Wojciech Jaruzelski nominates Solidarity activist Tadeusz Mazowiecki to be the first non-communist prime minister in 42 years.
September 19 » A bomb destroys UTA Flight 772 in mid-air above the Tùnùrù Desert, Niger, killing all 170 passengers and crew.
October 17 » The East German Politburo votes to remove Erich Honecker from his role as General Secretary.
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 17 » Romanian Revolution: Protests continue in Timișoara, Romania, with rioters breaking into the Romanian Communist Party's District Committee building and attempting to set it on fire.
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/I1779.php : accessed October 1, 2026), "Trijntje Kootstra (1898-1989)".
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