The temperature on March 5, 1861 was about 3.6 °C. There was 0.2 mm of rain. The air pressure was 4 kgf/m2 and came mainly from the west-southwest. The airpressure was 77 cm mercury. The atmospheric humidity was 90%. Source: KNMI
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).
From March 14, 1861 till January 31, 1862 the Netherlands had a cabinet Van Zuijlen van Nijevelt - Loudon with the prime ministers Mr. J.P.P. baron Van Zuijlen van Nijevelt (conservatief-liberaal) and Mr. J. Loudon (liberaal).
January 9 » Mississippi becomes the second state to secede from the Union before the outbreak of the American Civil War.
February 11 » American Civil War: The United States House of Representatives unanimously passes a resolution guaranteeing noninterference with slavery in any state.
February 18 » With Italian unification almost complete, Victor Emmanuel II of Piedmont, Savoy and Sardinia assumes the title of King of Italy.
February 23 » President-elect Abraham Lincoln arrives secretly in Washington, D.C., after the thwarting of an alleged assassination plot in Baltimore, Maryland.
March 30 » Discovery of the chemical elements: Sir William Crookes announces his discovery of thallium.
June 10 » American Civil War: Battle of Big Bethel: Confederate troops under John B. Magruder defeat a much larger Union force led by General Ebenezer W. Pierce in Virginia.
Day of marriage June 14, 1889
The temperature on June 14, 1889 was about 24.1 °C. The air pressure was 4 kgf/m2 and came mainly from the north-northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 56%. Source: KNMI
January 8 » Herman Hollerith is issued US patent #395,791 for the 'Art of Applying Statistics' — his punched card calculator.
February 11 » Meiji Constitution of Japan is adopted.
May 2 » Menelik II, Emperor of Ethiopia, signs the Treaty of Wuchale, giving Italy control over Eritrea.
August 13 » William Gray of Hartford, Connecticut is granted United States Patent Number 408,709 for "Coin-controlled apparatus for telephones."
October 24 » Henry Parkes delivers the Tenterfield Oration, effectively starting the federation process in Australia.
November 23 » The first jukebox goes into operation at the Palais Royale Saloon in San Francisco.
Day of death April 13, 1931
The temperature on April 13, 1931 was between 2.8 °C and 10.3 °C and averaged 6.4 °C. There was 1.6 mm of rain during 1.8 hours. There was 7.5 hours of sunshine (55%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northwest. 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.
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/I4078.php : accessed March 16, 2026), "Nicolaas Bartholomeus Wolff (1861-1931)".
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