January 18 » An X-ray generating machine is exhibited for the first time by H. L. Smith.
March 1 » Battle of Adwa: An Ethiopian army defeats an outnumbered Italian force, ending the First Italo-Ethiopian War.
May 18 » The United States Supreme Court rules in Plessy v. Ferguson that the "separate but equal" doctrine is constitutional.
June 2 » Guglielmo Marconi applies for a patent for his wireless telegraph.
July 28 » The city of Miami, Florida is incorporated.
August 30 » Philippine Revolution: After Spanish victory in the Battle of San Juan del Monte, eight provinces in the Philippines are declared under martial law by the Spanish Governor-General Ramón Blanco y Erenas.
Day of marriage August 11, 1915
The temperature on August 11, 1915 was between 11.9 °C and 21.9 °C and averaged 17.0 °C. There was 6.7 hours of sunshine (45%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
January 19 » German strategic bombing during World War I: German zeppelins bomb the towns of Great Yarmouth and King's Lynn in the United Kingdom killing at least 20 people, in the first major aerial bombardment of a civilian target.
March 20 » Albert Einstein publishes his general theory of relativity.
March 26 » The Vancouver Millionaires win the 1915 Stanley Cup Finals, the first championship played between the Pacific Coast Hockey Association and the National Hockey Association.
May 23 » World War I: Italy joins the Allies, fulfilling its part of the Treaty of London.
July 24 » The passenger ship SSEastland capsizes while tied to a dock in the Chicago River. A total of 844 passengers and crew are killed in the largest loss of life disaster from a single shipwreck on the Great Lakes.
August 15 » A story in New York World newspaper reveals that the Imperial German government had purchased excess phenol from Thomas Edison that could be used to make explosives for the war effort and diverted it to Bayer for aspirin production.
Day of death March 22, 1977
The temperature on March 22, 1977 was between 5.2 °C and 11.2 °C and averaged 7.3 °C. There was 0.7 mm of rain during 0.9 hours. There was 0.2 hours of sunshine (2%). The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east. Source: KNMI
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
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.
April 5 » The US Supreme Court rules that congressional legislation that diminished the size of the Sioux people's reservation thereby destroyed the tribe's jurisdictional authority over the area in Rosebud Sioux Tribe v. Kneip.
July 4 » The George Jackson Brigade plants a bomb at the main power substation for the Washington state capitol in Olympia, in solidarity with a prison strike at the Walla Walla State Penitentiary Intensive Security Unit.
July 13 » New York City: Amidst a period of financial and social turmoil experiences an electrical blackout lasting nearly 24 hours that leads to widespread fires and looting.
October 13 » Hijacking of Lufthansa Flight 181 by the Popular Front for the Liberation of Palestine.
November 26 » An unidentified hijacker named Vrillon, claiming to be the representative of the "Ashtar Galactic Command", takes over Britain's Southern Television for six minutes, starting at 5:12 pm.
When copying data from this family tree, please include a reference to the origin: Tijs van den Brink, "Parentele of Geurt Jacobs", database, Genealogy Online (https://www.genealogieonline.nl/geurt-jacobs/I18323.php : accessed January 29, 2026), "Thona van Sligtenhorst (1896-1977)".
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