March 1 » Battle of Adwa: An Ethiopian army defeats an outnumbered Italian force, ending the First Italo-Ethiopian War.
March 1 » Henri Becquerel discovers radioactive decay.
April 6 » In Athens, the opening of the first modern Olympic Games is celebrated, 1,500 years after the original games are banned by Roman emperor Theodosius I.
June 2 » Guglielmo Marconi applies for a patent for his wireless telegraph.
July 28 » The city of Miami, Florida is incorporated.
December 14 » The Glasgow Underground Railway is opened by the Glasgow District Subway Company.
Day of marriage May 18, 1918
The temperature on May 18, 1918 was between 11.7 °C and 26.0 °C and averaged 18.6 °C. There was 12.1 hours of sunshine (77%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. 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.
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 12 » The Minnie Pit Disaster coal mining accident occurs in Halmer End, Staffordshire, in which 155 men and boys die.
February 1 » Russia adopts the Gregorian calendar.
July 4 » Bolsheviks kill Tsar Nicholas II of Russia and his family (Julian calendar date).
August 17 » Bolshevik revolutionary leader Moisei Uritsky is assassinated.
October 30 » World War I: Lands of the Crown of Saint Stephen, a state union of Kingdom of Hungary and Triune Kingdom of Croatia, Slavonia and Dalmatia is abolished with decisions of Croatian and Hungarian parliaments
November 21 » The Parliament (Qualification of Women) Act 1918 is passed, allowing women to stand for Parliament in the UK.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I108664.php : accessed October 10, 2026), "Pieter Witteveen (1896-????)".
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