April 30 » J. J. Thomson of the Cavendish Laboratory announces his discovery of the electron as a subatomic particle, over 1,800 times smaller than a proton (in the atomic nucleus), at a lecture at the Royal Institution in London.
August 2 » Anglo-Afghan War: The Siege of Malakand ends when a relief column is able to reach the British garrison in the Malakand states.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
August 21 » Oldsmobile, an American automobile manufacturer and marque, is founded.
August 31 » Thomas Edison patents the Kinetoscope, the first movie projector.
December 6 » London becomes the world's first city to host licensed taxicabs.
Day of death February 25, 1990
The temperature on February 25, 1990 was between 6.0 °C and 11.7 °C and averaged 9.2 °C. There was 2.8 mm of rain during 3.1 hours. There was 1.2 hours of sunshine (11%). The partly or heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. 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.
January 1 » David Dinkins is sworn in as New York City's first black mayor.
January 13 » Douglas Wilder becomes the first elected African American governor as he takes office as Governor of Virginia in Richmond, Virginia.
February 7 » Dissolution of the Soviet Union: The Central Committee of the Soviet Communist Party agrees to give up its monopoly on power.
April 12 » Jim Gary's "Twentieth Century Dinosaurs" exhibition opens at the Smithsonian Institution National Museum of Natural History in Washington, D.C. He is the only sculptor ever invited to present a solo exhibition there.
June 20 » Asteroid Eureka is discovered.
July 6 » The Electronic Frontier Foundation is founded.
When copying data from this family tree, please include a reference to the origin: P. Heres, "Family tree Eilander", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eilander/I1099516999.php : accessed February 2, 2026), "Elisabeth Tromp (1897-1990)".
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