March 4 » The Constitutional Act of 1791 is introduced by the British House of Commons in London which envisages the separation of Canada into Lower Canada (Quebec) and Upper Canada (Ontario).
March 4 » Vermont is admitted to the United States as the fourteenth state.
May 15 » French Revolution: Maximilien Robespierre proposes the Self-denying Ordinance.
June 21 » King Louis XVI of France and his immediate family begin the Flight to Varennes during the French Revolution.
August 22 » Beginning of the Haitian Slave Revolution in Saint-Domingue, Haiti.
September 13 » King Louis XVI of France accepts the new constitution.
Christening day April 10, 1791
The temperature on April 10, 1791 was about 8.0 °C. Wind direction mainly north-northeast. Weather type: zeer betrokken. Source: KNMI
January 2 » Big Bottom massacre in the Ohio Country, North America, marking the beginning of the Northwest Indian War.
January 25 » The British Parliament passes the Constitutional Act of 1791 and splits the old Province of Quebec into Upper Canada and Lower Canada.
July 14 » The Priestley Riots drive Joseph Priestley, a supporter of the French Revolution, out of Birmingham, England.
July 17 » Members of the French National Guard under the command of General Lafayette open fire on a crowd of radical Jacobins at the Champ de Mars, Paris, during the French Revolution, killing scores of people.
August 4 » The Treaty of Sistova is signed, ending the Ottoman–Habsburg wars.
September 9 » Washington, D.C., the capital of the United States, is named after President George Washington.
Day of marriage May 9, 1813
The temperature on May 9, 1813 was about 18.0 °C. Wind direction mainly north. Weather type: half bewolkt regen zwaar donder weerlicht. Special wheather fenomena: bliksem. Source: KNMI
This page is only available in Dutch.
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).
June 22 » War of 1812: After learning of American plans for a surprise attack on Beaver Dams in Ontario, Laura Secord sets out on a 30 kilometer journey on foot to warn Lieutenant James FitzGibbon.
September 10 » The United States defeats a British Fleet at the Battle of Lake Erie during the War of 1812.
October 16 » The Sixth Coalition attacks Napoleon in the three-day Battle of Leipzig.
October 19 » War of the Sixth Coalition: Napoleon is forced to retreat from Germany after the Battle of Leipzig.
October 26 » War of 1812: A combined force of British regulars, Canadian militia, and Mohawks defeat the Americans in the Battle of the Chateauguay.
December 30 » War of 1812: British soldiers burn Buffalo, New York.
Day of death July 25, 1866
The temperature on July 25, 1866 was about 18.3 °C. The air pressure was 7 kgf/m2 and came mainly from the northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 59%. 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.
In The Netherlands , there was from February 10, 1866 to June 1, 1866 the cabinet Fransen van de Putte, with I.D. Fransen van de Putte (liberaal) as prime minister.
From June 1, 1866 till June 4, 1868 the Netherlands had a cabinet Van Zuijlen van Nijevelt - Heemskerk with the prime ministers Mr. J.P.J.A. graaf Van Zuijlen van Nijevelt (AR) and Mr. J. Heemskerk Azn. (conservatief).
May 1 » The Memphis Race Riots begin. In three days time, 46 blacks and two whites were killed. Reports of the atrocities influenced passage of the Fourteenth Amendment to the United States Constitution.
May 2 » Peruvian defenders fight off the Spanish fleet at the Battle of Callao.
May 22 » Oliver Winchester founded the Winchester Repeating Arms
July 27 » The first permanent transatlantic telegraph cable is successfully completed, stretching from Valentia Island, Ireland, to Heart's Content, Newfoundland.
July 28 » At the age of 18, Vinnie Ream becomes the first and youngest female artist to receive a commission from the United States government for a statue (of Abraham Lincoln).
August 17 » The Grand Duchy of Baden announces her withdrawal from the German Confederation and signs a treaty of peace and alliance with Prussia.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I192983.php : accessed October 14, 2026), "Johannes Piers de Groot (1791-1866)".
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