* 1791 – Beginning of the Haitian Slave Revolution in Saint-Domingue.

* Haliotis australis Gmelin, 1791 – the Austral abalone

* Haliotis gigantea Gmelin, 1791 – the giant abalone, Awabi

* Haliotis glabra Gmelin, 1791 – the glistening abalone

* Haliotis iris Gmelin, 1791 – the blackfoot abalone, rainbow abalone, or Pāua

* Haliotis ovina Gmelin, 1791 – the sheep's ear abalone

* Haliotis pulcherrima Gmelin, 1791 – the most beautiful abalone

* 1791 – American troops destroy the Miami town of Kenapacomaqua near the site of present-day Logansport, Indiana in the Northwest Indian War.

* 1719 – Charles-François de Broglie, marquis de Ruffec, French soldier and diplomat ( d. 1791 )

* 1791 – sinks after having run aground on a reef the previous day.

* 1718 – Frederick Haldimand, Swiss-English military officer ( d. 1791 )

They were considered a Catholic innovation, not widely practiced until the 18th century, and were opposed vigorously in worship by a number of Protestant Reformers, including Martin Luther ( 1483 – 1546 ), John Calvin ( 1509 – 1564 ) and John Wesley ( 1703 – 1791 ).

* 1791 – The Treaty of Sistova is signed, ending the Ottoman – Habsburg wars.

* Christian Charles Josias Bunsen ( 1791 – 1860 ), Prussian diplomat and scholar

* Frances Bunsen ( 1791 – 1876 ), or Baroness Bunsen, Welsh painter and author, wife of Christian Charles Josias Bunsen

For example, Panama and El Salvador have declared U. S. currency to be legal tender, and from 1791 – 1857, Spanish silver coins were legal tender in the United States.

Charles Babbage, FRS ( 26 December 1791 – 18 October 1871 ) was an English mathematician, philosopher, inventor and mechanical engineer who originated the concept of a programmable computer.

The current resistance to Russian rule has its roots in the late 18th century ( 1785 – 1791 ), a period when Russia expanded into territories formerly under the dominion of Turkey and Persia ( see also the Russo-Turkish Wars and Russo-Persian War ( 1804 – 1813 )), under Mansur Ushurma — a Chechen Naqshbandi ( Sufi ) Sheikh — with wavering support from other North Caucasian tribes.

* 1791 – The United States Bill of Rights becomes law when ratified by the Virginia General Assembly.

* 1847 – Archduchess Marie Louise of Austria, second wife of Napoleon ( b. 1791 )

* 1716 – Etienne-Maurice Falconet, French sculptor ( d. 1791 )

However after the obituary appeared, a nephew wrote to say that Charles Babbage was born one year earlier, in 1791.

* 1791 – Charles Wolfe, Irish poet ( d. 1823 )

On the foreign affairs front, in the Declaration of Pillnitz of August 1791, Holy Roman Emperor Leopold II, Count Charles of Artois, and King Frederick William II of Prussia made Louis XVI's cause their own.

* October 18 – Charles Babbage, English mathematician and inventor ( b. 1791 )

* February 21 – Charles Wolfe, Irish poet ( b. 1791 )

A copy of Vega's Thesaurus belonging to the private collection of the British mathematician and computing pioneer Charles Babbage ( 1791 – 1871 ) is preserved at the Royal Observatory, Edinburgh.

Following the abdication of the last Margrave, Charles Alexander, from the principalities of Ansbach and Bayreuth on 2 December 1791 its territories became part of a Prussian province.

In March 1791, the National Assembly created a law outlining the regency of Louis Charles in case his father died while he was still too young to reign.

Born in Colmar, in the Alsace region of France to Jean Charles Bartholdi ( 1791 – 1836 ) and Augusta Charlotte Bartholdi Beysser ( 1801 – 1891 ), Bartholdi was the youngest of their four children, and one of only two to survive infancy, along with the oldest brother, Jean-Charles, who became a lawyer and editor.

Benjamin Harrison V ( April 5, 1726 – April 24, 1791 ) was an American planter and revolutionary leader from Charles City County, Virginia.

It was named for Revolutionary War hero, Gen. Charles Scott, who led the Kentucky Militia at the disastrous Battle of the Wabash in 1791.

The first church, built in 1791, was dedicated to San Carlos Borromeo, and the town became known as San Carlos del Misuri: " St. Charles of the Missouri ".

In 1791, President Washington commissioned Pierre ( Peter ) Charles L ’ Enfant, a French-born architect and city planner, to design the new capital.

* Charles Goldsborough ( July 15, 1765 – December 13, 1834 ), State Senator 1791 – 1795 and 1799 – 1801, U. S. Congressman 1789 – 1791, Governor of Maryland 1818 – 1819

In his 1791 plan for the future city of Washington, D. C., Pierre ( Peter ) Charles L ' Enfant envisioned a garden-lined “ grand avenue ” approximately 1 mile ( 1. 6 km ) in length

* Charles Babbage ( 1791 – 1871 ), mathematician, computer scientist

" He was buried wrapped in a military cloak in the ramparts of the town ; the funeral is celebrated in a well known poem by Charles Wolfe ( 1791 – 1823 ), " The Burial of Sir John Moore after Corunna ", which begins:

Fortunately for Hardenberg, this coincided with the lapsing of the principalities of Ansbach and Bayreuth to Prussia, owing to the resignation of the last margrave, Charles Alexander, in 1791.

Christian Charles Josias von Bunsen. Christian Charles Josias, Baron von Bunsen ( 25 August 1791, Korbach, Waldeck – 28 November 1860, Bonn ) was a German diplomat and scholar.

The parish register of St. Mary's Newington, London, shows that Babbage was baptised on 6 January 1792, supporting a birth year of 1791.

* October 18-Charles Babbage ( born 1791 ), English mathematician and inventor of computing machines.

On this site, Charles Babbage, the Victorian mechanical computer pioneer, was born in 1791, although the original house has been demolished.