The temperature on August 21, 1915 was between 9.9 °C and 17.4 °C and averaged 13.4 °C. There was 9.7 mm of rain. There was 3.4 hours of sunshine (24%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the 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.
February 22 » World War I: The Imperial German Navy institutes unrestricted submarine warfare.
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 7 » World War I: German submarine U-20 sinks RMS Lusitania, killing 1,198 people, including 128 Americans. Public reaction to the sinking turns many former pro-Germans in the United States against the German Empire.
May 22 » Lassen Peak erupts with a powerful force, the only volcano besides Mount St. Helens to erupt in the contiguous U.S. during the 20th century.
July 28 » The United States begins a 19-year occupation of Haiti.
Day of death September 18, 1987
The temperature on September 18, 1987 was between 8.8 °C and 20.5 °C and averaged 16.3 °C. There was 14.6 mm of rain during 2.9 hours. There was 4.7 hours of sunshine (37%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from Tuesday, November 4, 1986 to Tuesday, November 7, 1989 the cabinet Lubbers II, with Drs. R.F.M. Lubbers (CDA) as prime minister.
April 19 » The Simpsons first appear as a series of shorts on The Tracey Ullman Show, first starting with Good Night.
May 5 » Iran–Contra affair: Start of Congressional televised hearings in the United States of America
June 8 » New Zealand's Labour government establishes a national nuclear-free zone under the New Zealand Nuclear Free Zone, Disarmament, and Arms Control Act 1987.
June 11 » Diane Abbott, Paul Boateng and Bernie Grant are elected as the first black MPs in Great Britain.
June 29 » Vincent Van Gogh’s painting, the Le Pont de Trinquetaille, was bought for $20.4million at an auction in London, England.
October 21 » The Jaffna hospital massacre is carried out by Indian Peace Keeping Force in Sri Lanka, killing 70 ethnic Tamil patients, doctors and nurses.
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/I145846.php : accessed October 20, 2026), "Jan Bosma (1915-1987)".
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