April 5 » United States President George Washington exercises his authority to veto a bill, the first time this power is used in the United States.
May 17 » The New York Stock Exchange is formed under the Buttonwood Agreement.
June 4 » Captain George Vancouver claims Puget Sound for the Kingdom of Great Britain.
September 2 » During what became known as the September Massacres of the French Revolution, rampaging mobs slaughter three Roman Catholic bishops, more than two hundred priests, and prisoners believed to be royalist sympathizers.
October 3 » A militia departs from the Spanish stronghold of Valdivia to quell a Huilliche uprising in southern Chile.
October 29 » Mount Hood (Oregon) is named after Samuel Hood, 1st Viscount Hood by Lt. William E. Broughton who sighted the mountain near the mouth of the Willamette River.
Day of death June 20, 1870
The temperature on June 20, 1870 was about 19.4 °C. The air pressure was 6 kgf/m2 and came mainly from the west. The airpressure was 77 cm mercury. The atmospheric humidity was 67%. 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).
January 23 » In Montana, U.S. cavalrymen kill 173 Native Americans, mostly women and children, in what becomes known as the Marias Massacre.
February 9 » US president Ulysses S. Grant signs a joint resolution of Congress establishing the U.S. Weather Bureau.
February 25 » Hiram Rhodes Revels, a Republican from Mississippi, is sworn into the United States Senate, becoming the first African American ever to sit in Congress.
June 26 » The Christian holiday of Christmas is declared a federal holiday in the United States.
July 1 » The United States Department of Justice formally comes into existence.
December 12 » Joseph H. Rainey of South Carolina becomes the second black U.S. congressman.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I98097.php : accessed October 3, 2026), "Matthijs Hendrik van Son (1792-1870)".
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