The temperature on May 15, 1861 was about 12.4 °C. The air pressure was 2 kgf/m2 and came mainly from the north-northeast. The airpressure was 77 cm mercury. The atmospheric humidity was 61%. Source: KNMI
From February 23, 1860 till March 14, 1861 the Netherlands had a cabinet Van Hall - Van Heemstra with the prime ministers Mr. F.A. baron Van Hall (conservatief-liberaal) and Mr. S. baron Van Heemstra (liberaal).
From March 14, 1861 till January 31, 1862 the Netherlands had a cabinet Van Zuijlen van Nijevelt - Loudon with the prime ministers Mr. J.P.P. baron Van Zuijlen van Nijevelt (conservatief-liberaal) and Mr. J. Loudon (liberaal).
January 3 » American Civil War: Delaware votes not to secede from the United States.
August 19 » First ascent of Weisshorn, fifth highest summit in the Alps.
October 25 » The Toronto Stock Exchange is created.
November 7 » American Civil War: Battle of Belmont: In Belmont, Missouri, Union forces led by General Ulysses S. Grant overrun a Confederate camp but are forced to retreat when Confederate reinforcements arrive.
December 4 » The 109 Electors of the several states of the Confederate States of America unanimously elect Jefferson Davis as President and Alexander H. Stephens as Vice President.
December 21 » Medal of Honor: Public Resolution 82, containing a provision for a Navy Medal of Valor, is signed into law by President Abraham Lincoln.
Day of death June 15, 1869
The temperature on June 15, 1869 was about 16.6 °C. The air pressure was 12 kgf/m2 and came mainly from the southwest. The airpressure was 75 cm mercury. The atmospheric humidity was 56%. 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).
March 6 » Dmitri Mendeleev presents the first periodic table to the Russian Chemical Society.
May 26 » Boston University is chartered by the Commonwealth of Massachusetts.
August 29 » The Mount Washington Cog Railway opens, making it the world's first mountain-climbing rack railway.
September 24 » Gold prices plummet after President Grant orders the Treasury to sell large quantities of gold after Jay Gould and James Fisk plot to control the market.
October 5 » The Hennepin Island tunnel collapses during construction, nearly destroying St. Anthony Falls.
November 11 » The Victorian Aboriginal Protection Act is enacted in Australia, giving the government control of indigenous people's wages, their terms of employment, where they could live, and of their children, effectively leading to the Stolen Generations.
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/I59882.php : accessed December 27, 2025), "Aconia Koppius (1861-1869)".
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