March 18 » The first modern republic in Germany, the Republic of Mainz, is declared by Andreas Joseph Hofmann.
May 15 » Diego Marín Aguilera flies a glider for "about 360 meters", at a height of 5–6 meters, during one of the first attempted manned flights.
June 2 » French Revolution: François Hanriot, leader of the Parisian National Guard, arrests 22 Girondists selected by Jean-Paul Marat, setting the stage for the Reign of Terror.
July 23 » Kingdom of Prussia re-conquers Mainz from France.
September 18 » The first cornerstone of the United States Capitol is laid by George Washington.
October 16 » French Revolution: Queen Marie Antoinette is executed.
Day of death April 11, 1871
The temperature on April 11, 1871 was about 11.0 °C. The air pressure was 2 kgf/m2 and came mainly from the south east. The atmospheric humidity was 34%. 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 19 » Franco-Prussian War: In the Siege of Paris, Prussia wins the Battle of St. Quentin. Meanwhile, the French attempt to break the siege in the Battle of Buzenval will end unsuccessfully the following day.
March 21 » Journalist Henry Morton Stanley begins his trek to find the missionary and explorer David Livingstone.
March 21 » Otto von Bismarck is appointed as the first Chancellor of the German Empire.
May 21 » Opening of the first rack railway in Europe, the Rigi Bahnen on Mount Rigi.
July 2 » Victor Emmanuel II of Italy enters Rome after having conquered it from the Papal States.
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: Keith Mann Spencer, "Mann Spencer Tree", database, Genealogy Online (https://www.genealogieonline.nl/mann-spencer-tree/P997.php : accessed January 6, 2026), "Ann Ladson (1793-1871)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.