The temperature on May 6, 1861 was about 7.2 °C. The air pressure was 0.5 kgf/m2 and came mainly from the north-northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 65%. 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 9 » American Civil War: Jefferson Davis is elected the Provisional President of the Confederate States of America by the Confederate convention at Montgomery, Alabama.
May 13 » American Civil War: Queen Victoria of the United Kingdom issues a "proclamation of neutrality" which recognizes the Confederacy as having belligerent rights.
June 1 » American Civil War: The Battle of Fairfax Court House is fought.
June 17 » American Civil War: Battle of Vienna, Virginia.
November 7 » American Civil War: Battle of Belmont: In Belmont, Missouri, Union forces led by General Ulysses S. Grant overrun a Confederate camp but are forced to retreat when Confederate reinforcements arrive.
Day of marriage April 10, 1895
The temperature on April 10, 1895 was about 11.1 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 95%. Source: KNMI
April 8 » In Pollock v. Farmers' Loan & Trust Co. the Supreme Court of the United States declares unapportioned income tax to be unconstitutional.
May 7 » In Saint Petersburg, Russian scientist Alexander Stepanovich Popov demonstrates to the Russian Physical and Chemical Society his invention, the Popov lightning detector—a primitive radio receiver. In some parts of the former Soviet Union the anniversary of this day is celebrated as Radio Day.
May 25 » The Republic of Formosa is formed, with Tang Jingsong as its president.
June 27 » The inaugural run of the Baltimore and Ohio Railroad's Royal Blue from Washington, D.C., to New York City, the first U.S. passenger train to use electric locomotives.
October 21 » The Republic of Formosa collapses as Japanese forces invade.
November 5 » George B. Selden is granted the first U.S. patent for an automobile.
Day of death June 20, 1920
The temperature on June 20, 1920 was between 9.3 °C and 23.7 °C and averaged 18.1 °C. There was 8.8 hours of sunshine (53%). The average windspeed was 2 Bft (weak wind) and was prevailing from the 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.
February 29 » Czechoslovak National Assembly adopts the Constitution.
July 12 » The Soviet–Lithuanian Peace Treaty is signed, by which Soviet Russia recognizes the independence of Lithuania.
August 15 » Polish–Soviet War: Battle of Warsaw, so-called Miracle at the Vistula.
August 16 » Ray Chapman of the Cleveland Indians is hit on the head by a fastball thrown by Carl Mays of the New York Yankees, and dies early the next day. Chapman was the second player to die from injuries sustained in a Major League Baseball game, the first being Doc Powers in 1909.
August 26 » The 19th amendment to United States Constitution takes effect, giving women the right to vote.
October 25 » After 74 days on hunger strike in Brixton Prison, England, the Sinn Féin Lord Mayor of Cork, Terence MacSwiney dies.
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/I12769.php : accessed January 25, 2026), "Isadore Christiaan van Abo (1861-1920)".
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