The temperature on July 24, 1791 was about 11.0 °C. There was 220 mm of rainWind direction mainly southwest. Weather type: betrokken regen. Source: KNMI
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.
September 13 » King Louis XVI of France accepts the new constitution.
September 27 » The National Assembly votes to award full citizenship to Jews in France.
September 30 » France's National Constituent Assembly is dissolved, to be replaced the next day by the National Legislative Assembly
September 30 » The first performance of Mozart's opera The Magic Flute takes place two months before his death.
Day of marriage June 7, 1818
The temperature on June 7, 1818 was about 17.0 °C. Wind direction mainly northeast. Weather type: half bewolkt. 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 15 » A paper by David Brewster is read to the Royal Society, belatedly announcing his discovery of what we now call the biaxial class of doubly-refracting crystals. On the same day, Augustin-Jean Fresnel signs a "supplement" (submitted four days later) on reflection of polarized light.
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 16 » The United States Senate ratifies the Rush–Bagot Treaty, limiting naval armaments on the Great Lakes and Lake Champlain.
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.
October 20 » The Convention of 1818 is signed between the United States and the United Kingdom, which settles the Canada–United States border on the 49th parallel for most of its length.
Day of death June 4, 1879
The temperature on June 4, 1879 was about 16.4 °C. The air pressure was 14 kgf/m2 and came mainly from the west-northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 57%. Source: KNMI
In The Netherlands , there was from November 3, 1877 to August 20, 1879 the cabinet Kappeijne van de Coppello, with Mr. J. Kappeijne van de Coppello (liberaal) as prime minister.
In The Netherlands , there was from August 20, 1879 to April 23, 1883 the cabinet Van Lijnden van Sandenburg, with Mr. C.Th. baron Van Lijnden van Sandenburg (conservatief-AR) as prime minister.
February 8 » Sandford Fleming first proposes adoption of Universal Standard Time at a meeting of the Royal Canadian Institute.
February 14 » The War of the Pacific breaks out when the Chilean Army occupies the Bolivian port city of Antofagasta.
February 15 » Women's rights: US President Rutherford B. Hayes signs a bill allowing female attorneys to argue cases before the Supreme Court of the United States.
April 23 » Fire burns down the second main building and dome of the University of Notre Dame, which prompts the construction of the third, and current, Main Building with its golden dome.
July 1 » Charles Taze Russell publishes the first edition of the religious magazine The Watchtower.
October 8 » War of the Pacific: The Chilean Navy defeats the Peruvian Navy in the Battle of Angamos.
When copying data from this family tree, please include a reference to the origin: J. van Broekhoven, "Database Van Broekhoven", database, Genealogy Online (https://www.genealogieonline.nl/database-van-broekhoven/I112079.php : accessed January 26, 2026), "Leonardus de Roy (1791-1879)".
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