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 » The original manuscript of William Bradford's history, "Of Plymouth Plantation" is returned to the Governor of Massachusetts by the Bishop of London after being taken during the American Revolutionary War.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
July 26 » Anglo-Afghan War: The Pashtun fakir Saidullah leads an army of more than 10,000 to begin a siege of the British garrison in the Malakand Agency of the North West Frontier Province of India.
September 11 » After months of pursuit, generals of Menelik II of Ethiopia capture Gaki Sherocho, the last king of Kaffa, bringing an end to that ancient kingdom.
December 30 » The British Colony of Natal annexes Zululand.
Day of death May 21, 1989
The temperature on May 21, 1989 was between 14.1 °C and 26.2 °C and averaged 20.4 °C. There was 13.1 hours of sunshine (82%). The almost cloudless was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
In The Netherlands , there was from Tuesday, November 4, 1986 to Tuesday, November 7, 1989 the cabinet Lubbers II, with Drs. R.F.M. Lubbers (CDA) as prime minister.
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 20 » George H. W. Bush is inaugurated the 41st President of the United States of America.
January 29 » Cold War: Hungary establishes diplomatic relations with South Korea, making it the first Eastern Bloc nation to do so.
March 7 » Iran and the United Kingdom break diplomatic relations after a fight over Salman Rushdie and his controversial novel, The Satanic Verses.
July 26 » A federal grand jury indicts Cornell University student Robert T. Morris, Jr. for releasing the Morris worm, thus becoming the first person to be prosecuted under the 1986 Computer Fraud and Abuse Act.
October 3 » A coup in Panama City is suppressed and 11 participants are executed.
December 17 » Romanian Revolution: Protests continue in Timișoara, Romania, with rioters breaking into the Romanian Communist Party's District Committee building and attempting to set it on fire.
When copying data from this family tree, please include a reference to the origin: Toon Steenbergen, "Steenbergen family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_steenbergen/I735.php : accessed March 7, 2026), "Last (1897-1989)".
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