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.
July 26 » Anglo-Afghan War: The Pashtun fakir Saidullah leads an army of more than 10,000 to begin a siege of the British garrison in the Malakand Agency of the North West Frontier Province of India.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
September 1 » The Tremont Street Subway in Boston opens, becoming the first underground rapid transit system in North America.
December 30 » The British Colony of Natal annexes Zululand.
Day of marriage January 31, 1918
The temperature on January 31, 1918 was between -2.3 °C and 8.2 °C and averaged 1.8 °C. There was 6.8 hours of sunshine (75%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. 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.
February 3 » The Twin Peaks Tunnel in San Francisco, California begins service as the longest streetcar tunnel in the world at 11,920 feet (3,633 meters) long.
March 31 » Daylight saving time goes into effect in the United States for the first time.
June 10 » The Austro-Hungarian battleship SMSSzent István sinks off the Croatian coast after being torpedoed by an Italian MAS motorboat; the event is recorded by camera from a nearby vessel.
August 11 » World War I: The Battle of Amiens ends.
October 4 » World War I: An explosion kills more than 100 people and destroys a Shell Loading Plant in New Jersey.
November 9 » Kaiser Wilhelm II of Germany abdicates after the German Revolution, and Germany is proclaimed a Republic.
Day of death June 8, 1990
The temperature on June 8, 1990 was between 7.6 °C and 18.1 °C and averaged 13.2 °C. There was -0.1 mm of rain. There was 7.8 hours of sunshine (47%). The partly or heavily clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the west. Source: KNMI
In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
March 18 » In the largest art theft in US history, 12 paintings, collectively worth around $500million, are stolen from the Isabella Stewart Gardner Museum in Boston.
March 21 » Namibia becomes independent after 75 years of South African rule.
April 7 » A fire breaks out on the passenger ferry Scandinavian Star, killing 159 people.
April 24 » STS-31: The Hubble Space Telescope is launched from the Space Shuttle Discovery.
August 13 » A mainland Chinese fishing boat Min Ping Yu No. 5202 is hit by a Taiwan's naval vessel and sinks in a repatriation operation of mainland Chinese illegal immigrants, resulting in 21 deaths. This is the second tragedy less than a month after Min Ping Yu No. 5540 incident.
September 30 » The Dalai Lama unveils the Canadian Tribute to Human Rights in Canada's capital city of Ottawa.
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/I136080.php : accessed October 19, 2026), "Antje de Jager (1897-1990)".
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