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 16 » A treaty annexing the Republic of Hawaii to the United States is signed; the Republic would not be dissolved until a year later.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio 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.
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.
November 1 » The first Library of Congress building opens its doors to the public; the library had previously been housed in the Congressional Reading Room in the U.S. Capitol.
Day of death February 20, 1981
The temperature on February 20, 1981 was between -4.7 °C and -0.2 °C and averaged -1.6 °C. There was 1.2 mm of rain during 5.0 hours. There was 1.3 hours of sunshine (13%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
In The Netherlands , there was from Friday, September 11, 1981 to Saturday, May 29, 1982 the cabinet Van Agt II, with Mr. A.A.M. van Agt (CDA) as prime minister.
January 2 » One of the largest investigations by a British police force ends when serial killer Peter Sutcliffe, the "Yorkshire Ripper", is arrested in Sheffield, South Yorkshire.
January 18 » Phil Smith and Phil Mayfield parachute off a Houston skyscraper, becoming the first two people to BASE jump from objects in all four categories: buildings, antennae, spans (bridges), and earth (cliffs).
May 5 » Bobby Sands dies in the Long Kesh prison hospital after 66 days of hunger-striking, aged 27.
August 12 » The IBM Personal Computer is released.
September 18 » The Assemblée Nationale votes to abolish capital punishment in France.
November 11 » Antigua and Barbuda joins the United Nations.
When copying data from this family tree, please include a reference to the origin: Geert Ebben, "Family tree Ebben-van Loon", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ebben-van-loon/I6175.php : accessed June 18, 2024), "Petrus Heesmans (1897-1981)".
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