January 1 » New York, New York annexes land from surrounding counties, creating the City of Greater New York. The four initial boroughs, Manhattan, Brooklyn, Queens, and The Bronx, are joined on January 25 by Staten Island to create the modern city of five boroughs.
June 12 » Philippine Declaration of Independence: General Emilio Aguinaldo declares the Philippines' independence from Spain.
September 21 » Empress Dowager Cixi seizes power and ends the Hundred Days' Reform in China.
November 3 » France withdraws its troops from Fashoda (now in Sudan), ending the Fashoda Incident.
November 5 » Negrese nationalists revolt against Spanish rule and establish the short-lived Republic of Negros.
December 26 » Marie and Pierre Curie announce the isolation of radium.
Day of death September 9, 1990
The temperature on September 9, 1990 was between 9.4 °C and 18.4 °C and averaged 13.5 °C. There was -0.1 mm of rain. There was 5.1 hours of sunshine (39%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the 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 21 » Namibia becomes independent after 75 years of South African rule.
April 16 » "Doctor Death", Jack Kevorkian, participates in his first assisted suicide.
June 19 » The Communist Party of the Russian Soviet Federative Socialist Republic is founded in Moscow.
August 12 » Sue, the largest and most complete Tyrannosaurus rex skeleton found to date, is discovered by Sue Hendrickson in South Dakota.
September 12 » The two German states and the Four Powers sign the Treaty on the Final Settlement with Respect to Germany in Moscow, paving the way for German reunification.
November 28 » British Prime Minister Margaret Thatcher resigns as leader of the Conservative Party and, therefore, as Prime Minister. She is succeeded in both positions by John Major.
When copying data from this family tree, please include a reference to the origin: Martin Alta, "Family tree Alta", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-alta/I100.php : accessed February 2, 2026), "Folkert (08 2 0120) ALTA (1898-1990)".
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