The temperature on June 23, 1884 was about 13.5 °C. The air pressure was 1 kgf/m2 and came mainly from the northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 80%. 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.
April 20 » Pope Leo XIII publishes the encyclical Humanum genus.
May 1 » The Federation of Organized Trades and Labor Unions demands the eight-hour work day in the United States.
June 16 » The first purpose-built roller coaster, LaMarcus Adna Thompson's "Switchback Railway", opens in New York's Coney Island amusement park.
July 5 » Germany takes possession of Cameroon.
October 6 » The Naval War College of the United States is founded in Rhode Island.
December 6 » The Washington Monument in Washington, D.C., is completed.
Day of death August 30, 1969
The temperature on August 30, 1969 was between 13.4 °C and 19.1 °C and averaged 15.8 °C. There was 4.1 hours of sunshine (30%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. Source: KNMI
April 4 » Dr. Denton Cooley implants the first temporary artificial heart.
May 2 » The British ocean liner Queen Elizabeth 2 departs on her maiden voyage to New York City.
May 16 » Venera program: Venera 5, a Soviet space probe, lands on Venus.
May 18 » Apollo program: Apollo 10 is launched.
July 21 » Apollo program: At 02:56 UTC, astronaut Neil Armstrong becomes the first person to walk on the Moon.
December 9 » U.S. Secretary of State William P. Rogers proposes his plan for a ceasefire in the War of Attrition; Egypt and Jordan accept it over the objections of the PLO, which leads to civil war in Jordan in September 1970.
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/I81999.php : accessed October 16, 2026), "Mient Pel (1884-1969)".
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