| in?=
| cp=17th century
| c=18th century
| cf=19th century
| yp1=1788
| yp2=1789
| yp3=1790
| year=1791
| ya1=1792
| ya2=1793
| ya3=1794
| dp3=1760s
| dp2=1770s
| dp1=1780s
| d=1790s
| dn1=1800s
| dn2=1810s
| dn3=1820s
}}
1791 (MDCCXCI) was a Common Year Starting On Saturday (see link for calendar) of the Gregorian Calendar (or a Common Year Starting On Tuesday of the 11-day-slower Julian Calendar ).
Events
- January 25 - The British Parliament passes the Constitutional Act Of 1791 , splitting the old province of Quebec into Upper and Lower Canada .
- March 2 - Long-distance communication speeds up with the unveiling of a Semaphore machine in Paris .
- March 4 - Vermont is admitted as the 14th U.S. State .
- May 3 - The Polish Sejm ( Parliament ) proclaims the Constitution Of Third May , the first modern codified Constitution in Europe .
- July 14 - The Priestley Riots in Birmingham , England .
- June 20 - The French Royal Family is captured when they try to flee in disguise.
- August 6 - Brandenburg Gate in Berlin finished.
- August 26 - John Fitch is granted a patent for the Steamboat in the United States .
- September 25 - The Mission Santa Cruz , is founded by Father Fermín Francisco De Lasuén , becoming the twelfth mission in the California Mission chain.
- October 9 - The Mission Nuestra Señora De La Soledad , was founded by Father Fermín Francisco De Lasuén , becoming the thirteenth mission in the California Mission chain.
- December 4 - The first issue of '' The Observer '', the world's first Sunday Newspaper , is published.
- December 15 - Ratification by the states of the first ten amendments to the United States Constitution is completed, creating the United States Bill Of Rights . Two additional amendments remain pending, and one of these is finally ratified in 1992 , becoming the Twenty-seventh Amendment .
Unknown dates
Ongoing events
Births
- January 15 - Franz Grillparzer , Austrian writer (d. 1872 )
- January 28 - Louis Joseph Ferdinand Herold , French composer (d. 1833 )
- February 21 - Carl Czerny , Austrian composer (d. 1857 )
- February 21 - John Mercer , chemist and industrialist (d. 1866 )
- April 23 - James Buchanan , 15th President Of The United States (d. 1868 )
- April 27 - Samuel Morse , American inventor (d. 1872 )
- July 26 - Franz Xaver Wolfgang Mozart , Austrian composer and pianist (d. 1844 )
- September 5 - Giacomo Meyerbeer , German composer (d. 1864 )
- September 21 - István Széchenyi , Hungarian politician and writer (d. 1860 )
- September 22 - Michael Faraday , British scientist (d. 1867 )
- September 26 - Théodore Géricault , French writer (d. 1824 )
- November 11 - Josef Munzinger , Member Of The Swiss Federal Council (d. 1855 )
- December 26 - Charles Babbage , British mathematician and inventor (d. 1871 )
Deaths
- January 11 - William Williams Pantycelyn , Welsh hymnist (b. 1717 )
- March 2 - John Wesley , English founder of Methodism (b. 1703 )
- March 14 - Johann Salomo Semler , German historian and Bible commentator (b. 1725 )
- April 19 - Richard Price , Welsh philosopher (b. 1723 )
- May 9 - Francis Hopkinson , American signer of the Declaration of Independence (b. 1737 )
- June 5 - Frederick Haldimand , Swiss-born British colonial governor (b. 1718 )
- June 10 - Toussaint-Guillaume Picquet De La Motte , French admiral (b. 1720 )
- July 17 - Martin Dobrizhoffer , Austrian Jesuit missionary (b. 1717 )
- July 25 - Isaac Low , American delegate to the Continental Congress (b. 1735 )
- August 16 - Charles-François De Broglie, Marquis De Ruffec , French soldier and diplomat (b. 1719 )
- September 25 - William Bradford , American printer (b. 1719 )
- December 5 - Wolfgang Amadeus Mozart , Austrian composer (b. 1756 )
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