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 » Dracula, a Gothic horror novel by Irish author Bram Stoker, is published.
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).
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 April 11, 1968
The temperature on April 11, 1968 was between -0.9 °C and 8.6 °C and averaged 3.9 °C. There was 9.3 hours of sunshine (68%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
July 23 » The only successful hijacking of an El Al aircraft takes place when a Boeing 707 carrying ten crew and 38 passengers is taken over by three members of the Popular Front for the Liberation of Palestine. The aircraft was en route from Rome, to Lod, Israel.
September 2 » Operation OAU begins during the Nigerian Civil War.
October 1 » Guyana nationalizes the British Guiana Broadcasting Service, which would eventually become part of the National Communications Network, Guyana.
November 20 » A total of 78 miners are killed in an explosion at the Consolidated Coal Company's No. 9 mine in Farmington, West Virginia in the Farmington Mine disaster.
November 26 » Vietnam War: United States Air Force helicopter pilot James P. Fleming rescues an Army Special Forces unit pinned down by Viet Cong fire. He is later awarded the Medal of Honor.
November 27 » Penny Ann Early became the first woman to play major professional basketball for the Kentucky Colonels in an ABA game against the Los Angeles Stars.
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/I173636.php : accessed January 21, 2026), "Johannes Jacobus van Bilsen (1897-1968)".
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