The temperature on August 1, 1860 was about 16.3 °C. There was 0.1 mm of rain. The air pressure was 3 kgf/m2 and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 80%. Source: KNMI
From March 18, 1858 till February 23, 1860 the Netherlands had a cabinet Rochussen - Van Bosse with the prime ministers J.J. Rochussen (conservatief-liberaal) and Mr. P.P. van Bosse (liberaal).
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).
January 1 » The first Polish stamp is issued, replacing the Russian stamps previously in use.
March 17 » The First Taranaki War begins in Taranaki, New Zealand, a major phase of the New Zealand Wars.
March 24 » Sakuradamon Incident: Assassination of Japanese Chief Minister (Tairō) Ii Naosuke.
June 23 » The United States Congress establishes the Government Printing Office.
September 7 » Italian unification: Giuseppe Garibaldi enters Naples.
October 18 » The Second Opium War finally ends at the Convention of Peking with the ratification of the Treaty of Tientsin, an unequal treaty.
Day of marriage July 8, 1889
The temperature on July 8, 1889 was about 15.9 °C. There was 5 mm of rain. The air pressure was 4 kgf/m2 and came mainly from the south-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 74%. Source: KNMI
January 8 » Herman Hollerith is issued US patent #395,791 for the 'Art of Applying Statistics' — his punched card calculator.
March 23 » The Ahmadiyya Muslim Community is established by Mirza Ghulam Ahmad in Qadian, British India.
April 1 » The University of Northern Colorado was established, as the Colorado State Normal School.
May 6 » The Eiffel Tower is officially opened to the public at the Universal Exposition in Paris.
October 24 » Henry Parkes delivers the Tenterfield Oration, effectively starting the federation process in Australia.
November 2 » North Dakota and South Dakota are admitted as the 39th and 40th U.S. states.
Day of death November 15, 1920
The temperature on November 15, 1920 was between 7.5 °C and 14.0 °C and averaged 11.3 °C. There was 7.7 mm of rain. The average windspeed was 6 Bft (strong wind) and was prevailing from the south-southwest. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
When copying data from this family tree, please include a reference to the origin: Hans Opperman, "Family tree Opperman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-opperman/I298.php : accessed January 19, 2026), "Hendrika Couwenberg (1860-1920)".
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