The temperature on April 29, 1867 was about 10.0 °C. There was 0.8 mm of rain. The airpressure was 76 cm mercury. The atmospheric humidity was 92%. 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).
January 8 » African American men are granted the right to vote in Washington, D.C.
April 1 » Singapore becomes a British crown colony.
May 3 » The Hudson's Bay Company gives up all claims to Vancouver Island.
June 19 » Maximilian I of the Second Mexican Empire is executed by a firing squad in Querétaro, Querétaro.
July 17 » Harvard School of Dental Medicine is established in Boston, Massachusetts. It is the first dental school in the U.S. that is affiliated with a university.
December 13 » A Fenian bomb explodes in Clerkenwell, London, killing six.
Day of death August 21, 1868
The temperature on August 21, 1868 was about 17.5 °C. There was 7 mm of rain. The air pressure was 3 kgf/m2 and came mainly from the northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 88%. 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).
March 23 » The University of California is founded in Oakland, California when the Organic Act is signed into law.
July 28 » The 14th Amendment to the United States Constitution is certified, establishing African American citizenship and guaranteeing due process of law.
August 18 » French astronomer Pierre Janssen discovers helium.
October 7 » Cornell University holds opening day ceremonies; initial student enrollment is 412, the highest at any American university to that date.
December 9 » The first traffic lights are installed, outside the Palace of Westminster in London. Resembling railway signals, they use semaphore arms and are illuminated at night by red and green gas lamps.
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: F. van Dijk, "Family tree Van Dijk", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_van_dijk/R3452.php : accessed January 5, 2026), "Willem Wichhart (1867-1868)".
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