* 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 )

The declaration of independence by the 13 British colonies of North America, and the victory of the French Revolution of 1789, influenced early Cuban liberation movements, as did the successful revolt of black slaves in Haiti in 1791.

George Hamilton-Gordon, 4th Earl of Aberdeen ( 28 January 1784 – 14 December 1860 ), styled Lord Haddo from 1791 to 1801, was a British politician and landowner, successively a Tory, Conservative and Peelite, who served as Prime Minister of the United Kingdom from 1852 until 1855.

John Graves Simcoe ( February 25, 1752 – October 26, 1806 ) was a British army officer and the first Lieutenant Governor of Upper Canada from 1791 – 1796.

At the time the region was part of British North America and became part of Upper Canada after the Constitutional Act of 1791.

* 1791 – A Constitutional Act is introduced by the British House of Commons in London which envisages the separation of Canada into Lower Canada ( Quebec ) and Upper Canada ( Ontario ).

Victorian Infidels: the origins of the British Secularist Movement, 1791 – 1866.

During his discussions with George Hammond, first British Minister to the U. S. from 1791, Jefferson tried to achieve three important goals: secure British admission of violating the Treaty of Paris ( 1783 ) ; vacate their posts in the Northwest ( the territory between the Appalachian Mountains and the Mississippi River north of the Ohio ); and compensate the United States to pay American slave owners for the slaves whom the British had freed and evacuated at the end of the war.

* January 25 – The British Parliament passes the Constitutional Act of 1791, splitting the old province of Quebec into Upper and Lower Canada.

* August 11 – Frederick Haldimand, Swiss-born British colonial governor ( d. 1791 )

The Province of Upper Canada ( French: province du Haut-Canada ) was a political division in British Canada established in 1791 by the British Empire to govern the central third of the lands in British North America and to accommodate Loyalist refugees from the United States of America after the American Revolution.

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.

The Province of Lower Canada () was a British colony on the lower Saint Lawrence River and the shores of the Gulf of Saint Lawrence ( 1791 – 1841 ).

The Province of Lower Canada was created by the Constitutional Act of 1791 from the partition of the British colony of the Province of Quebec ( 1763 – 91 ) into the Province of Lower Canada and the Province of Upper Canada.

After the Patriote Rebellion was crushed by the British army and Loyal volunteers, the 1791 Constitution was suspended on 27 March 1838 and a special council was appointed to administer the colony.

It was discovered even earlier by Louis Deschamps in Java between 1791 and 1794, but his notes and illustrations, seized by the British in 1803, were not available to western science until 1861.

It is one of several North American locations named after George Vancouver, the British Royal Navy officer who explored the Pacific Northwest coast of North America between 1791 and 1794.

Part of Herkimer County was included in the Macomb's Purchase of 1791, during the wide-scale sale of public lands after the state forced Iroquois tribes allied with the British during the war to cede their territory.

The British government dispatched HMS Pandora to capture the mutineers, and Pandora reached Tahiti on 23 March 1791.

* Thomas Howard, 3rd Earl of Effingham ( 1746 – 1791 ), British nobleman and Army officer

" Upper Canada " became a political entity on December 26, 1791 with the Parliament of Great Britain's passage of the Constitutional Act of 1791.

Under the terms of the Act of Parliament, tolls were reduced when the dividend exceeded 10 per cent, and the first such reduction occurred in 1791.

Some of the promoters began to think that improving the River Wye might be a better option, but the announcement of new seams of coal at Newent resulted in a decision to obtain an Act of Parliament, which was granted in April 1791.

The Irish Catholic Relief Act by Irish Parliament in 1793 ( which followed the 1791 British Parliament Act ), allowed Catholics to take degrees at Trinity College Dublin, by taking an oath of allegiance to the King but not supremacy which would negate their Catholic faith.

Daly's Club, originally frequented by members of the old Irish Parliament, moved to number 3, College Green, in 1791 and remained there until it closed in the 1820s.

In the following year, 1791, after one of William Wilberforce's many efforts to suppress the slave trade failed to pass Parliament, Barbauld wrote her Epistle to William Wilberforce on the Rejection of the Bill for Abolishing the Slave Trade.

Category: Great Britain Acts of Parliament 1791

Most of the important civic and administrative buildings which survive from 18th century Dublin, known then as " the second city of the Empire ", are of Portland stone, including City Hall, Dublin ( 1779 ), the Irish Houses of Parliament ( 1767 ), the Custom House ( 1791 ) and the General Post Office ( Dublin ) ( 1818 ).

* Thoughts on the Canada Bill, Now Depending in Parliament 1791

While the United Irish had declared themselves to be non-sectarian from 1791, there were other liberal Protestants in the Irish Parliament who were also anti-sectarian and sought a more democratic franchise, such as Henry Grattan and John Curran.

Portland was Member of Parliament for Petersfield between 1790 and 1791 and for Buckinghamshire between 1791 and 1809. and served under his father as a Lord of the Treasury between March and September 1807.

The British Roman Catholic Relief Act 1791 was adopted by the Irish Parliament in 1792 – 93.

Eliot also sat as Tory Member of Parliament for St Germans from 1791 to 1802 and for Liskeard from 1802 to 1823 and served as a Lord of the Admiralty from 1800 to 1804 and as Parliamentary Under-Secretary of State for Foreign Affairs from 1804 to 1805.

In 1741, he was elected Member of Parliament ( MP ) for Cricklade, then moved to Weymouth and Melcombe Regis ( 1747 – 1761 ), Aylesbury ( 1761 – 1768 ), Petersfield ( 1768 – 1774 ), Weymouth and Melcombe Regis ( 1774 – 1790 ) and Petersfield ( 1791 – 1794 ).

In 1788 he became Member of Parliament for the borough of Bere Alston in Devon, and in 1791 he introduced the important bill for the relief of Roman Catholics, which was passed into law.

As a Member of Parliament ( MP ), he represented Old Leighlin between 1791 and 1798 and subsequently Armagh Borough until 1801.

* John Curtis ( MP ) ( c. 1751 – 1813 ), English Member of Parliament for Wells, 1782 – 1784 and Steyning, 1791 – 1794

In 1791, Parliament repealed the Quebec Act and gave the king authority to divide the Canadian colony into two new provinces: Upper Canada, which later became Ontario, and Lower Canada, which became Quebec.

The lack of major towns or industries did not seem to worry the proposers, and an Act of Parliament was obtained on 13 May 1791, which allowed the Proprietors to raise £ 150, 000, with another £ 40, 000 if necessary.