February 20 » The Postal Service Act, establishing the United States Post Office Department, is signed by United States President George Washington.
April 20 » France declares war against the "King of Hungary and Bohemia", the beginning of French Revolutionary Wars.
May 11 » Robert Gray commands the first expedition to sail into the Columbia River.
July 25 » The Brunswick Manifesto is issued to the population of Paris promising vengeance if the French royal family is harmed.
September 21 » French Revolution: The National Convention abolishes the monarchy.
September 22 » Primidi Vendémiaire of year one of the French Republican Calendar as the French First Republic comes into being.
Day of marriage February 12, 1821
The temperature on February 12, 1821 was about -1.0 °C. Wind direction mainly northeast. Weather type: half bewolkt mist. 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).
March 25 » Traditional date of the start of the Greek War of Independence. The war had actually begun on 23 February 1821 (Julian calendar).
April 10 » Patriarch Gregory V of Constantinople is hanged by the Ottoman government from the main gate of the Patriarchate and his body is thrown into the Bosphorus.
May 5 » Emperor Napoleon dies in exile on the island of Saint Helena in the South Atlantic Ocean.
May 8 » Greek War of Independence: The Greeks defeat the Turks at the Battle of Gravia Inn.
June 12 » Badi VII, king of Sennar, surrenders his throne and realm to Isma'il Pasha, general of the Ottoman Empire, ending the existence of that Sudanese kingdom.
July 17 » The Kingdom of Spain cedes the territory of Florida to the United States.
Day of death September 29, 1865
The temperature on September 29, 1865 was about 11.7 °C. The air pressure was 1 kgf/m2 and came mainly from the northeast. The airpressure was 77 cm mercury. The atmospheric humidity was 85%. Source: KNMI
In The Netherlands , there was from February 1, 1862 to February 10, 1866 the cabinet Thorbecke II, with Mr. J.R. Thorbecke (liberaal) as prime minister.
March 18 » American Civil War: The Congress of the Confederate States adjourns for the last time.
March 29 » American Civil War: Federal forces under Major General Philip Sheridan move to flank Confederate forces under Robert E. Lee as the Appomattox Campaign begins.
April 4 » American Civil War: A day after Union forces capture Richmond, Virginia, U.S. President Abraham Lincoln visits the Confederate capital.
May 5 » American Civil War: The Confederate government was declared dissolved at Washington, Georgia.
May 12 » American Civil War: The Battle of Palmito Ranch: The first day of the last major land action to take place during the Civil War, resulting in a Confederate victory.
December 17 » First performance of the Unfinished Symphony by Franz Schubert.
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/I14048.php : accessed January 28, 2026), "Pieter Francois de Villiers (1792-1865)".
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