The temperature on January 18, 1866 was about 9.1 °C. The air pressure was 12 kgf/m2 and came mainly from the southwest. The airpressure was 77 cm mercury. The atmospheric humidity was 86%. Source: KNMI
In The Netherlands , there was from February 1, 1862 to February 10, 1866 the cabinet Thorbecke II, with Mr. J.R. Thorbecke (liberaal) as prime minister.
In The Netherlands , there was from February 10, 1866 to June 1, 1866 the cabinet Fransen van de Putte, with I.D. Fransen van de Putte (liberaal) as prime minister.
From June 1, 1866 till June 4, 1868 the Netherlands had a cabinet Van Zuijlen van Nijevelt - Heemskerk with the prime ministers Mr. J.P.J.A. graaf Van Zuijlen van Nijevelt (AR) and Mr. J. Heemskerk Azn. (conservatief).
January 12 » The Royal Aeronautical Society is formed in London.
April 6 » The Grand Army of the Republic, an American patriotic organization composed of Union veterans of the American Civil War, is founded. It lasts until 1956.
June 24 » Battle of Custoza: An Austrian army defeats the Italian army during the Austro-Prussian War.
July 20 » Austro-Prussian War: Battle of Lissa: The Austrian Navy, led by Admiral Wilhelm von Tegetthoff, defeats the Italian Navy near the island of Vis in the Adriatic Sea.
July 30 » Armed Confederate veterans in New Orleans riot against a meeting of Radical Republicans, killing 48 people and injuring another 100.
August 23 » Austro-Prussian War ends with the Treaty of Prague.
Day of death May 11, 1868
The temperature on May 11, 1868 was about 14.8 °C. The air pressure was 1 kgf/m2 and came mainly from the west-northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 80%. Source: KNMI
From June 1, 1866 till June 4, 1868 the Netherlands had a cabinet Van Zuijlen van Nijevelt - Heemskerk with the prime ministers Mr. J.P.J.A. graaf Van Zuijlen van Nijevelt (AR) and Mr. J. Heemskerk Azn. (conservatief).
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).
May 16 » The United States Senate fails to convict President Andrew Johnson by one vote.
June 10 » Mihailo Obrenović III, Prince of Serbia is assassinated.
June 23 » Christopher Latham Sholes received a patent for an invention he called the "Type-Writer".
July 25 » The Wyoming Territory is established.
November 3 » John Willis Menard (R-Louisiana) was the first African American elected to the United States Congress. Because of an electoral challenge, he was never seated.
December 11 » Paraguayan War: Brazilian troops defeat Paraguayan at the Battle of Avay.
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/I49559.php : accessed October 18, 2026), "Jacob Johannes Ykema (1866-1868)".
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