The temperature on June 21, 1868 was about 18.2 °C. There was 2 mm of rain. The air pressure was 2 kgf/m2 and came mainly from the east-northeast. 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).
May 29 » Mihailo Obrenović III, Prince of Serbia is assassinated.
June 10 » Mihailo Obrenović III, Prince of Serbia is assassinated.
July 9 » The 14th Amendment to the United States Constitution is ratified, guaranteeing African Americans full citizenship and all persons in the United States due process of law.
August 18 » French astronomer Pierre Janssen discovers helium.
September 28 » The Battle of Alcolea causes Queen Isabella II of Spain to flee to France.
December 10 » 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.
Day of death January 6, 1949
The temperature on January 6, 1949 was between 5.3 °C and 7.0 °C and averaged 5.8 °C. There was 0.3 hours of sunshine (4%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
January 11 » The first "networked" television broadcasts took place as KDKA-TV in Pittsburgh, Pennsylvania goes on the air connecting the east coast and mid-west programming.
March 2 » Captain James Gallagher lands his B-50 Superfortress Lucky Lady II in Fort Worth, Texas, after completing the first non-stop around-the-world airplane flight in 94 hours and one minute.
July 21 » The United States Senate ratifies the North Atlantic Treaty.
August 3 » The Basketball Association of America and the National Basketball League finalize the merger that would create the National Basketball Association.
August 31 » The retreat of the Democratic Army of Greece in Albania after its defeat on Gramos mountain marks the end of the Greek Civil War.
November 7 » The first oil was taken in Oil Rocks (Neft Daşları), oldest offshore oil platform.
When copying data from this family tree, please include a reference to the origin: Hendrik Dreyer, "Dreyer Tree", database, Genealogy Online (https://www.genealogieonline.nl/dreyer-tree/I5949.php : accessed January 18, 2026), "Jan Ernst Pieterse (1868-1949)".
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