The temperature on October 13, 1884 was about 8.9 °C. There was 2 mm of rain. The air pressure was 2 kgf/m2 and came mainly from the northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 89%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
January 4 » The Fabian Society is founded in London, United Kingdom.
March 13 » The Siege of Khartoum begins. It lasts until January 26, 1885.
March 27 » A mob in Cincinnati, Ohio, attacks members of a jury which had returned a verdict of manslaughter in what was seen as a clear case of murder; over the next few days the mob would riot and eventually destroy the courthouse.
July 3 » Dow Jones & Company publishes its first stock average.
October 13 » The International Meridian Conference establishes the meridian of the Greenwich Observatory as the prime meridian.
October 14 » George Eastman receives a U.S. Government patent on his new paper-strip photographic film.
Day of marriage May 28, 1904
The temperature on May 28, 1904 was between 10.9 °C and 19.8 °C and averaged 15.0 °C. There was 5.4 hours of sunshine (33%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
February 8 » Aceh War: Dutch Colonial Army's Marechaussee regiment led by General G.C.E. van Daalen launch military campaign to capture Gayo Highland, Alas Highland, and Batak Highland in Dutch East Indies' Northern Sumatra region, which ends with genocide to Acehnese and Bataks people.
February 8 » Battle of Port Arthur: A surprise torpedo attack by the Japanese at Port Arthur, China starts the Russo-Japanese War.
April 30 » The Louisiana Purchase Exposition World's Fair opens in St. Louis, Missouri.
May 4 » The United States begins construction of the Panama Canal.
July 21 » Louis Rigolly, a Frenchman, becomes the first man to break the 100mph (161km/h) barrier on land. He drove a 15-liter Gobron-Brillié in Ostend, Belgium.
December 3 » The Jovian moon Himalia is discovered by Charles Dillon Perrine at California's Lick Observatory.
Day of death August 30, 1970
The temperature on August 30, 1970 was between 10.4 °C and 25.0 °C and averaged 17.4 °C. There was 11.0 hours of sunshine (80%). The almost cloudless was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
March 5 » The Treaty on the Non-Proliferation of Nuclear Weapons goes into effect after ratification by 43 nations.
April 1 » President Richard Nixon signs the Public Health Cigarette Smoking Act into law, requiring the Surgeon General's warnings on tobacco products and banning cigarette advertising on television and radio in the United States, effective 1 January 1971.
June 15 » Charles Manson goes on trial for the Sharon Tate murders.
September 2 » NASA announces the cancellation of two Apollo missions to the Moon, Apollo 15 (the designation is re-used by a later mission), and Apollo 19.
September 16 » King Hussein of Jordan declares war against the Palestine Liberation Organization, the conflict which became to be known as Black September.
October 16 » Canadian Prime Minister Pierre Trudeau invokes the War Measures Act during the October Crisis.
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/I1625.php : accessed October 3, 2026), "Hielkje Koopmans (1884-1970)".
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