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.
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.
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.
Day of death April 8, 1970
The temperature on April 8, 1970 was between -2.3 °C and 6.6 °C and averaged 1.5 °C. There was 1.4 mm of rain during 1.3 hours. There was 3.3 hours of sunshine (25%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
April 1 » President Richard Nixon signs the Public Health Cigarette Smoking Act into law, requiring the Surgeon General's warnings on tobacco products and banning cigarette advertising on television and radio in the United States, effective 1 January 1971.
April 6 » Newhall massacre: Four California Highway Patrol officers are killed in a shootout.
May 9 » Vietnam War: In Washington, D.C., 75,000 to 100,000 war protesters demonstrate in front of the White House.
October 5 » The Public Broadcasting Service (PBS) is founded.
November 5 » The Military Assistance Command, Vietnam reports the lowest weekly American soldier death toll in five years (24).
November 26 » In Basse-Terre, Guadeloupe, 1.5 inches (38.1mm) of rain fall in a minute, the heaviest rainfall ever recorded.
When copying data from this family tree, please include a reference to the origin: Han Eman, "Family tree Eman/Swart-Radstok/Attevelt", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eman/I5280.php : accessed January 7, 2026), "Johannes Citteur (1897-1970)".
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