The temperature on May 7, 1861 was about 7.4 °C. There was 0.5 mm of rain. The air pressure was 6 kgf/m2 and came mainly from the north-northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 80%. 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 21 » American Civil War: Jefferson Davis resigns from the United States Senate.
March 3 » Alexander II of Russia signs the Emancipation Manifesto, freeing serfs.
March 21 » Alexander Stephens gives the Cornerstone Speech.
April 12 » American Civil War: Battle of Fort Sumter. The war begins with Confederate forces firing on Fort Sumter, in the harbor of Charleston, South Carolina.
May 29 » The Hong Kong General Chamber of Commerce is founded, in Hong Kong.
August 19 » First ascent of Weisshorn, fifth highest summit in the Alps.
Day of death December 17, 1919
The temperature on December 17, 1919 was between 0.1 °C and 3.6 °C and averaged 1.6 °C. There was 3.8 mm of rain. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. 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.
January 21 » A revolutionary Irish parliament is founded and declares the independence of the Irish Republic. One of the first engagements of the Irish War of Independence takes place.
February 11 » Friedrich Ebert (SPD), is elected President of Germany.
March 1 » March 1st Movement begins in Korea under Japanese rule.
July 27 » The Chicago Race Riot erupts after a racial incident occurred on a South Side beach, leading to 38 fatalities and 537 injuries over a five-day period.
September 18 » Fritz Pollard becomes the first African American to play professional football for a major team, the Akron Pros.
October 28 » The U.S. Congress passes the Volstead Act over President Wilson's veto, paving the way for Prohibition to begin the following January.
When copying data from this family tree, please include a reference to the origin: W. Rovers, "Family tree Ro(o)vers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_rovers/I18664.php : accessed February 16, 2026), "Maria Anna Constantia de Roover (1861-1919)".
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