January 9 » Treaty of Jassy between Russian and Ottoman Empire is signed.
April 21 » Tiradentes, a revolutionary leading a movement for Brazil's independence, is hanged, drawn and quartered.
April 25 » "La Marseillaise" (the French national anthem) is composed by Claude Joseph Rouget de Lisle.
May 21 » A lava dome collapses on Mount Unzen, near the city of Shimbara on the Japanese island of Kyūshū, creating a deadly tsunami that kills nearly 15,000 people.
June 4 » Captain George Vancouver claims Puget Sound for the Kingdom of Great Britain.
December 11 » French Revolution: King Louis XVI of France is put on trial for treason by the National Convention.
Day of death August 4, 1871
The temperature on August 4, 1871 was about 18.1 °C. There was 1 mm of rain. The air pressure was 5 kgf/m2 and came mainly from the west-southwest. The atmospheric humidity was 90%. 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).
In The Netherlands , there was from January 4, 1871 to July 6, 1872 the cabinet Thorbecke III, with Mr. J.R. Thorbecke (liberaal) as prime minister.
January 3 » In the Battle of Bapaume, an engagement in the Franco-Prussian War, General Louis Faidherbe's forces bring about a Prussian retreat.
March 21 » Journalist Henry Morton Stanley begins his trek to find the missionary and explorer David Livingstone.
May 28 » The Paris Commune falls after two months.
July 20 » British Columbia joins the confederation of Canada.
October 8 » The Great Chicago Fire and the much deadlier Peshtigo Fire break out.
December 26 » Thespis, the first Gilbert and Sullivan collaboration, debuts. It does modestly well, but the two would not collaborate again for four years and the score has been lost.
When copying data from this family tree, please include a reference to the origin: Charles Olson, "Olson's Tree", database, Genealogy Online (https://www.genealogieonline.nl/olsons-tree/P15380.php : accessed February 23, 2026), "Sara Schweyer, Trevor (1792-1871)".
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