Important Historical Events of the year 1791, Year 1791 in History

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List of 1791 Major News Events in History, Most Important Historical Events in 1791

What happened in the year 1791?

Date	Event
January 2, 1791	Big Bottom massacre in the Ohio Country, North America, marking the beginning of the Northwest Indian War.
January 10, 1791	The Siege of Dunlap's Station begins near Cincinnati during the Northwest Indian War.
January 25, 1791	The British Parliament passes the Constitutional Act of 1791 and splits the old Province of Quebec into Upper Canada and Lower Canada.
February 18, 1791	Congress passes a law admitting the state of Vermont to the Union, effective 4 March, after that state had existed for 14 years as a de facto independent largely unrecognized state.
March 2, 1791	Claude Chappe demonstrates the first semaphore line near Paris.
March 4, 1791	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, 1791	Vermont is admitted to the United States as the fourteenth state.
May 3, 1791	The Constitution of May 3 (the first modern constitution in Europe) is proclaimed by the Sejm of Polish–Lithuanian Commonwealth.
May 15, 1791	French Revolution: Maximilien Robespierre proposes the Self-denying Ordinance.
June 20, 1791	King Louis XVI, disguised as a valet, and the French royal family attempt to flee Paris during the French Revolution.
June 21, 1791	King Louis XVI of France and his immediate family begin the Flight to Varennes during the French Revolution.
July 6, 1791	At Padua, the Emperor Leopold II calls on the monarchs of Europe to join him in demanding the king of France Louis XVI's freedom.
July 14, 1791	Beginning of Priestley Riots (to 17 July) in Birmingham targeting Joseph Priestley as a supporter of the French Revolution.
July 17, 1791	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, 1791	The Treaty of Sistova is signed, ending the Ottoman–Habsburg wars.
August 7, 1791	American troops destroy the Miami town of Kenapacomaqua near the site of present-day Logansport, Indiana in the Northwest Indian War.
August 14, 1791	Slaves from plantations in Saint-Domingue hold a Vodou ceremony led by houngan Dutty Boukman at Bois Caïman, marking the start of the Haitian Revolution.
August 21, 1791	A Vodou ceremony, led by Dutty Boukman, turns into a violent slave rebellion, beginning the Haitian Revolution.
August 22, 1791	The Haitian slave revolution begins in Saint-Domingue, Haiti.
August 26, 1791	John Fitch is granted a United States patent for the steamboat.
August 27, 1791	French Revolution: Frederick William II of Prussia and Leopold II, Holy Roman Emperor, issue the Declaration of Pillnitz, declaring the joint support of the Holy Roman Empire and Prussia for the French monarchy, agitating the French revolutionaries and contributing to the outbreak of the War of the First Coalition.
August 30, 1791	HMS Pandora sinks after having run aground on the outer Great Barrier Reef the previous day.
September 5, 1791	Olympe de Gouges writes the Declaration of the Rights of Woman and of the Female Citizen.
September 9, 1791	Washington, D.C., the capital of the United States, is named after President George Washington.
September 13, 1791	King Louis XVI of France accepts the new constitution.
September 14, 1791	The Papal States lose Avignon to Revolutionary France.
September 27, 1791	The National Assembly of France votes to award full citizenship to Jews.
September 30, 1791	The first performance of Mozart's opera The Magic Flute takes place two months before his death.
September 30, 1791	France's National Constituent Assembly is dissolved, to be replaced the next day by the National Legislative Assembly.
October 1, 1791	First session of the French Legislative Assembly.
November 4, 1791	Northwest Indian War: The Western Confederacy of American Indians wins a major victory over the United States in the Battle of the Wabash.
November 9, 1791	The Dublin Society of United Irishmen is founded.
December 4, 1791	The first edition of The Observer, the world's first Sunday newspaper, is published.
December 15, 1791	The United States Bill of Rights becomes law when ratified by the Virginia General Assembly.