The temperature on May 25, 1869 was about 12.8 °C. The air pressure was 10 kgf/m2 and came mainly from the east-northeast. The airpressure was 75 cm mercury. The atmospheric humidity was 70%. Source: KNMI
From June 4, 1868 till January 4, 1871 the Netherlands had a cabinet Van Bosse - Fock with the prime ministers Mr. P.P. van Bosse (liberaal) and Mr. C. Fock (liberaal).
January 27 » Boshin War: Tokugawa rebels establish the Ezo Republic in Hokkaidō.
March 6 » Dmitri Mendeleev presents the first periodic table to the Russian Chemical Society.
March 24 » The last of Titokowaru's forces surrendered to the New Zealand government, ending his uprising.
April 6 » Celluloid is patented.
May 10 » The First Transcontinental Railroad, linking the eastern and western United States, is completed at Promontory Summit, Utah with the golden spike.
August 29 » The Mount Washington Cog Railway opens, making it the world's first mountain-climbing rack railway.
Day of marriage May 10, 1894
The temperature on May 10, 1894 was about 13.2 °C. There was 0.3 mm of rain. The airpressure was 76 cm mercury. The atmospheric humidity was 78%. Source: KNMI
In The Netherlands , there was from August 21, 1891 to May 9, 1894 the cabinet Van Tienhoven, with Mr. G. van Tienhoven (unie-liberaal) as prime minister.
In The Netherlands , there was from May 9, 1894 to July 27, 1897 the cabinet Roëll, with Jonkheer mr. J. Roëll (oud-liberaal) as prime minister.
February 7 » The Cripple Creek miner's strike, led by the Western Federation of Miners, begins in Cripple Creek, Colorado, United States.
March 22 » The first playoff game for the Stanley Cup starts.
March 25 » Coxey's Army, the first significant American protest march, departs Massillon, Ohio for Washington, D.C.
April 21 » Norway formally adopts the Krag–Jørgensen bolt-action rifle as the main arm of its armed forces, a weapon that would remain in service for almost 50 years.
July 25 » The First Sino-Japanese War begins when the Japanese fire upon a Chinese warship.
December 22 » The Dreyfus affair begins in France, when Alfred Dreyfus is wrongly convicted of treason.
Day of death July 18, 1959
The temperature on July 18, 1959 was between 15.7 °C and 30.4 °C and averaged 24.0 °C. There was 12.6 hours of sunshine (78%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
January 30 » MSHans Hedtoft, said to be the safest ship afloat and "unsinkable" like the RMSTitanic, strikes an iceberg on her maiden voyage and sinks, killing all 95 aboard.
February 9 » The R-7 Semyorka, the first intercontinental ballistic missile, becomes operational at Plesetsk, USSR.
February 19 » The United Kingdom grants Cyprus independence, which is formally proclaimed on August 16, 1960.
June 14 » Disneyland Monorail System, the first daily operating monorail system in the Western Hemisphere, opens to the public in Anaheim, California.
September 16 » The first successful photocopier, the Xerox 914, is introduced in a demonstration on live television from New York City.
December 1 » Cold War: Opening date for signature of the Antarctic Treaty, which sets aside Antarctica as a scientific preserve and bans military activity on the continent.
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/I12546.php : accessed October 15, 2026), "Jelte Koopmans (1869-1959)".
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