The temperature on August 15, 1869 was about 17.3 °C. The air pressure was 1 kgf/m2 and came mainly from the north. The airpressure was 77 cm mercury. The atmospheric humidity was 62%. 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.
April 17 » Morelos is admitted as the 27th state of Mexico.
May 10 » The First Transcontinental Railroad, linking the eastern and western United States, is completed at Promontory Summit, Utah with the golden spike.
May 26 » Boston University is chartered by the Commonwealth of Massachusetts.
June 27 » The Republic of Ezo on the island of Hokkaido ends after being defeated by Japanese Imperial troops.
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.
Day of marriage May 11, 1912
The temperature on May 11, 1912 was between 7.1 °C and 25.1 °C and averaged 15.6 °C. There was 2.1 hours of sunshine (14%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
September 4 » Albanian rebels succeed in their revolt when the Ottoman Empire agrees to fulfill their demands
October 8 » The First Balkan War begins when Montenegro declares war against the Ottoman Empire.
October 11 » First Balkan War: The day after the Battle of Sarantaporo, Greek troops liberate the city of Kozani.
November 27 » Spain declares a protectorate over the north shore of Morocco.
December 3 » Bulgaria, Greece, Montenegro, and Serbia (the Balkan League) sign an armistice with the Ottoman Empire, temporarily halting the First Balkan War. (The armistice will expire on February 3, 1913, and hostilities will resume.)
December 8 » Leaders of the German Empire hold an Imperial War Council to discuss the possibility that war might break out.
Day of death June 8, 1933
The temperature on June 8, 1933 was between 11.7 °C and 23.7 °C and averaged 18.0 °C. There was 14.1 hours of sunshine (85%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
In The Netherlands , there was from May 26, 1933 to July 31, 1935 the cabinet Colijn II, with Dr. H. Colijn (ARP) as prime minister.
When copying data from this family tree, please include a reference to the origin: Jaap Deelstra, "Family tree Deelstra, Balk, Van den Bos en Kamphof", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-deelstra/I296.php : accessed March 6, 2026), "Jannes Postema (1869-1933)".
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