The temperature on October 19, 1887 was about 10.7 °C. The air pressure was 4 kgf/m2 and came mainly from the west. The airpressure was 77 cm mercury. The atmospheric humidity was 76%. 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 20 » The United States Senate allows the Navy to lease Pearl Harbor as a naval base.
April 28 » A week after being arrested by the Prussian Secret Police, French police inspector Guillaume Schnaebelé is released on order of William I, German Emperor, defusing a possible war.
May 9 » Buffalo Bill Cody's Wild West Show opens in London.
June 18 » The Reinsurance Treaty between Germany and Russia is signed.
July 26 » Publication of the Unua Libro, founding the Esperanto movement.
November 13 » Bloody Sunday clashes in central London.
Day of death August 12, 1971
The temperature on August 12, 1971 was between 11.2 °C and 18.2 °C and averaged 15.3 °C. There was 0.9 mm of rain during 0.6 hours. There was 0.8 hours of sunshine (5%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
May 27 » Pakistani forces massacre over 200 civilians, mostly Bengali Hindus, in the Bagbati massacre.
June 7 » The United States Supreme Court overturns the conviction of Paul Cohen for disturbing the peace, setting the precedent that vulgar writing is protected under the First Amendment to the United States Constitution.
July 11 » Copper mines in Chile are nationalized.
August 10 » The Society for American Baseball Research is founded in Cooperstown, New York.
August 18 » Vietnam War: Australia and New Zealand decide to withdraw their troops from Vietnam.
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/I62598.php : accessed October 14, 2026), "Wopke Ploeg (1887-1971)".
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