April 18 » The Greco-Turkish War is declared between Greece and the Ottoman Empire.
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.
June 22 » British colonial officers Charles Walter Rand and Lt. Charles Egerton Ayerst are assassinated in Pune, Maharashtra, India by the Chapekar brothers and Mahadeo Vinayak Ranade, who are later caught and hanged.
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).
December 6 » London becomes the world's first city to host licensed taxicabs.
Day of death February 23, 1983
The temperature on February 23, 1983 was between -4.7 °C and 5.3 °C and averaged 0.1 °C. There was 9.3 hours of sunshine (89%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
In The Netherlands , there was from Thursday, November 4, 1982 to Monday, July 14, 1986 the cabinet Lubbers I, with Drs. R.F.M. Lubbers (CDA) as prime minister.
March 2 » Compact discs and players are released for the first time in the United States and other markets. They had previously been available only in Japan.
May 17 » The U.S. Department of Energy declassifies documents showing world's largest mercury pollution event in Oak Ridge, Tennessee (ultimately found to be 4.2million pounds [1.9kt]), in response to the Appalachian Observer's Freedom of Information Act request.
June 18 » Space Shuttle program: STS-7, Astronaut Sally Ride becomes the first American woman in space.
August 18 » Hurricane Alicia hits the Texas coast, killing 21 people and causing over US$1 billion in damage (1983 dollars).
September 27 » Richard Stallman announces the GNU Project to develop a free Unix-like operating system.
October 21 » The metre is defined as the distance light travels in a vacuum in 1/299,792,458 of a second.
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/I133135.php : accessed October 23, 2026), "Henry Postma (1897-1983)".
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