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.
May 26 » Dracula, a Gothic horror novel by Irish author Bram Stoker, is published.
June 16 » A treaty annexing the Republic of Hawaii to the United States is signed; the Republic would not be dissolved until a year later.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
September 12 » Tirah Campaign: In the Battle of Saragarhi, ten thousand Pashtun tribesmen suffer several hundred casualties while attacking 21 Sikh soldiers in British service.
December 6 » London becomes the world's first city to host licensed taxicabs.
Day of death January 9, 1991
The temperature on January 9, 1991 was between 4.6 °C and 10.4 °C and averaged 7.6 °C. There was 4.8 mm of rain during 3.3 hours. There was 3.2 hours of sunshine (40%). The partly 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 19 » Gulf War: Iraq fires a second Scud missile into Israel, causing 15 injuries.
April 2 » Rita Johnston becomes the first female Premier of a Canadian province when she succeeds William Vander Zalm (who had resigned) as Premier of British Columbia.
April 26 » 55 tornadoes break out in the central United States. Before the outbreak's end, Andover, Kansas, would record the year's only F5 tornado.
May 28 » The capital city of Addis Ababa falls to the Ethiopian People's Revolutionary Democratic Front, ending both the Derg regime in Ethiopia and the Ethiopian Civil War.
November 7 » Magic Johnson announces that he is HIV-positive and retires from the NBA.
December 25 » Mikhail Gorbachev resigns as President of the Soviet Union (the union itself is dissolved the next day). Ukraine's referendum is finalized and Ukraine officially leaves the Soviet Union.
When copying data from this family tree, please include a reference to the origin: Maria Weits, "Family tree Deuling", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-deuling/I746.php : accessed October 9, 2026), "Helena Teresia Gezina Lubberman (1897-1991)".
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