January 16 » Virginia enacts the Statute for Religious Freedom authored by Thomas Jefferson.
May 1 » In Vienna, Austria, Mozart's opera The Marriage of Figaro is performed for the first time.
June 10 » A landslide dam on the Dadu River created by an earthquake ten days earlier collapses, killing 100,000 in the Sichuan province of China.
June 25 » Gavriil Pribylov discovers St. George Island of the Pribilof Islands in the Bering Sea.
August 29 » Shays' Rebellion, an armed uprising of Massachusetts farmers, begins in response to high debt and tax burdens.
December 4 » Mission Santa Barbara is dedicated (on the feast day of Saint Barbara).
Day of marriage March 21, 1818
The temperature on March 21, 1818 was about 7.0 °C. Wind direction mainly southwest. Weather type: half bewolkt regen. 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.
March 30 » Physicist Augustin Fresnel reads a memoir on optical rotation to the French Academy of Sciences, reporting that when polarized light is "depolarized" by a Fresnel rhomb, its properties are preserved in any subsequent passage through an optically-rotating crystal or liquid.
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.
April 20 » The case of Ashford v Thornton ends, with Abraham Thornton allowed to go free rather than face a retrial for murder, after his demand for trial by battle is upheld.
September 7 » Carl III of Sweden–Norway is crowned king of Norway, in Trondheim.
December 3 » Illinois becomes the 21st U.S. state.
Day of burial September 30, 1864
The temperature on September 30, 1864 was about 13.6 °C. There was 0.2 mm of rain. The air pressure was 3 kgf/m2 and came mainly from the north-northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 71%. 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.
May 9 » Second Schleswig War: The Danish navy defeats the Austrian and Prussian fleets in the Battle of Heligoland.
May 29 » Emperor Maximilian I of Mexico arrives in Mexico for the first time.
June 29 » At least 99 people, mostly German and Polish immigrants, are killed in Canada's worst railway disaster after a train fails to stop for an open drawbridge and plunges into the Rivière Richelieu near St-Hilaire, Quebec.
July 22 » American Civil War: Battle of Atlanta: Outside Atlanta, Confederate General John Bell Hood leads an unsuccessful attack on Union troops under General William T. Sherman on Bald Hill.
August 22 » Twelve nations sign the First Geneva Convention, establishing the rules of protection of the victims of armed conflicts.
November 30 » American Civil War: The Confederate Army of Tennessee suffers heavy losses in an attack on the Union Army of the Ohio in the Battle of Franklin.
When copying data from this family tree, please include a reference to the origin: Michiel van Loon, "Family tree Van Loon", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-loon/I2808.php : accessed March 2, 2026), "Hendrik van Loon (1786-1864)".
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