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.
September 18 » The first cornerstone of the United States Capitol is laid by George Washington.
November 10 » A Goddess of Reason is proclaimed by the French Convention at the suggestion of Pierre Gaspard Chaumette.
November 16 » French Revolution: Ninety dissident Roman Catholic priests are executed by drowning at Nantes.
December 23 » The Battle of Savenay: A decisive defeat of the royalist counter-revolutionaries in War in the Vendée during the French Revolution.
Day of marriage February 26, 1818
The temperature on February 26, 1818 was about 3.0 °C. Wind direction mainly west-northwest. Weather type: betrokken regen hagel bui. Source: KNMI
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De Republiek der Verenigde Nederlanden werd in 1794-1795 door de Fransen veroverd onder leiding van bevelhebber Charles Pichegru (geholpen door de Nederlander Herman Willem Daendels); de verovering werd vergemakkelijkt door het dichtvriezen van de Waterlinie; Willem V moest op 18 januari 1795 uitwijken naar Engeland (en van daaruit in 1801 naar Duitsland); de patriotten namen de macht over van de aristocratische regenten en proclameerden de Bataafsche Republiek; op 16 mei 1795 werd het Haags Verdrag gesloten, waarmee ons land een vazalstaat werd van Frankrijk; in 3.1796 kwam er een Nationale Vergadering; in 1798 pleegde Daendels een staatsgreep, die de unitarissen aan de macht bracht; er kwam een nieuwe grondwet, die een Vertegenwoordigend Lichaam (met een Eerste en Tweede Kamer) instelde en als regering een Directoire; in 1799 sloeg Daendels bij Castricum een Brits-Russische invasie af; in 1801 kwam er een nieuwe grondwet; bij de Vrede van Amiens (1802) kreeg ons land van Engeland zijn koloniën terug (behalve Ceylon); na de grondwetswijziging van 1805 kwam er een raadpensionaris als eenhoofdig gezag, namelijk Rutger Jan Schimmelpenninck (van 31 oktober 1761 tot 25 maart 1825).
January 2 » The British Institution of Civil Engineers is founded by a group of six engineers; Thomas Telford would later become its first president.
February 5 » Jean-Baptiste Bernadotte ascends to the thrones of Sweden and Norway.
April 4 » The United States Congress, affirming the Second Continental Congress, adopts the flag of the United States with 13 red and white stripes and one star for each state (20 at that time).
April 19 » French physicist Augustin Fresnel signs his preliminary "Note on the Theory of Diffraction" (deposited on the following day). The document ends with what we now call the Fresnel integrals.
July 29 » French physicist Augustin Fresnel submits his prizewinning "Memoir on the Diffraction of Light", precisely accounting for the limited extent to which light spreads into shadows, and thereby demolishing the oldest objection to the wave theory of light.
December 24 » The first performance of "Silent Night" takes place in the church of St. Nikolaus in Oberndorf, Austria.
Day of death August 7, 1871
The temperature on August 7, 1871 was about 23.1 °C. The air pressure was 1 kgf/m2 and came mainly from the northeast. The atmospheric humidity was 61%. 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 28 » Franco-Prussian War: The Siege of Paris ends in French defeat and an armistice.
March 22 » In North Carolina, William Woods Holden becomes the first governor of a U.S. state to be removed from office by impeachment.
April 1 » The 3rd Duke of Buckingham opened the Brill Tramway, a short railway line to transport goods between his lands and the national rail network.
September 28 » The Brazilian Parliament passes a law that frees all children thereafter born to slaves, and all government-owned slaves.
October 10 » Chicago burns after a barn accident. The fire lasts from October 8–10.
November 16 » The National Rifle Association receives its charter from New York State.
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/P124.php : accessed December 23, 2025), "Margaret Parsons (1793-1871)".
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