June 11 » The Hundred Days' Reform, a planned movement to reform social, political, and educational institutions in China, is started by the Guangxu Emperor, but is suspended by Empress Dowager Cixi after 104 days. (The failed reform led to the abolition of the Imperial examination in 1905.)
June 21 » The United States captures Guam from Spain. The few warning shots fired by the U.S. naval vessels are misinterpreted as salutes by the Spanish garrison, which was unaware that the two nations were at war.
September 13 » Hannibal Goodwin patents celluloid photographic film.
November 3 » France withdraws its troops from Fashoda (now in Sudan), ending the Fashoda Incident.
November 10 » Beginning of the Wilmington insurrection of 1898, the only instance of a municipal government being overthrown in United States history.
December 26 » Marie and Pierre Curie announce the isolation of radium.
Day of death April 7, 1990
The temperature on April 7, 1990 was between 1.5 °C and 12.0 °C and averaged 6.9 °C. There was 11.6 hours of sunshine (87%). The almost cloudless 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 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
April 23 » Namibia becomes the 160th member of the United Nations and the 50th member of the Commonwealth of Nations.
May 30 » Croatian Parliament is constituted after the first free, multi-party elections, today celebrated as the National Day of Croatia.
June 13 » First day of the June 1990 Mineriad in Romania. At least 240 strikers and students are arrested or killed in the chaos ensuing from the first post-Ceaușescu elections.
October 3 » The German Democratic Republic is abolished and becomes part of the Federal Republic of Germany.
November 12 » Crown Prince Akihito is formally installed as Emperor Akihito of Japan, becoming the 125th Japanese monarch.
November 17 » Fugendake, part of the Mount Unzen volcanic complex, Nagasaki Prefecture, Japan, becomes active again and erupts.
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/I113707.php : accessed October 13, 2026), "Sjoerd Wartena (1898-1990)".
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