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 16 » A treaty annexing the Republic of Hawaii to the United States is signed; the Republic would not be dissolved until a year later.
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.
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United 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.
Day of death April 9, 1984
The temperature on April 9, 1984 was between 1.9 °C and 9.6 °C and averaged 5.4 °C. There was 0.2 mm of rain during 0.3 hours. There was 1.6 hours of sunshine (12%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. 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.
January 1 » The original American Telephone & Telegraph Company is divested of its 22 Bell System companies as a result of the settlement of the 1974 United States Department of Justice antitrust suit against AT&T.
January 7 » Brunei becomes the sixth member of the Association of Southeast Asian Nations (ASEAN).
January 22 » The Apple Macintosh, the first consumer computer to popularize the computer mouse and the graphical user interface, is introduced during a Super Bowl XVIII television commercial.
July 1 » The PG-13 rating is introduced by the MPAA.
July 17 » The national drinking age in the United States was changed from 18 to 21.
September 18 » Joe Kittinger completes the first solo balloon crossing of the Atlantic.
When copying data from this family tree, please include a reference to the origin: J Eijsermans, "Eijsermans family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijsermans/I482279.php : accessed March 11, 2026), "Joanna Cornelia Antonia Emmen (1897-1984)".
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