1791

Events from the year 1791 in the United States.
==Incumbents==
===Federal Government===
* President: George Washington (F-VA)
* Vice President: John Adams (F-MA)
* Chief Justice: John Jay (NY)
* Speaker of the House of Representatives: Frederick Muhlenberg (Pro-Admin.-PA) (until March 4), Jonathan Trumbull Jr. (Pro-Admin.-CT) (starting October 24)
* Congress: 1st (until March 4), 2nd (starting March 4)
==Events==
* March 4 – Vermont admitted becomes the 14th U.S. state.
* March 5 – Thomas Chittenden is inaugurated as the first governor of Vermont.
* March 9 – Pierre Charles L'Enfant arrives in Georgetown and begins designing the federal capital city.
* March 30 – District of Columbia is established.
* August 26 – John Fitch is granted a patent for the steamboat in the United States.
* September 5 – An ordinance is written barring the game of baseball within 80 yards of the Meeting House in Pittsfield, Massachusetts, the first known reference to the game of baseball in North America.
* September 9 – Washington, D.C. is officially named after the incumbent President.
* September 25 – Mission Santa Cruz is founded by Basque Franciscan Father Fermín Lasuén, becoming the 12th mission in the California mission chain.
* October 9 – Mission Nuestra Señora de la Soledad is founded by Father Fermin Lasuen, becoming the 13th mission in the California mission chain.
* October 25 – The State of the Union address.
* December 15 – Ratification by the states of the first 10 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 27th Amendment.
==Memoriam==
* April 24 – Benjamin Harrison V, signer of Declaration of Independence, father of President William Henry Harrison, great-grandfather of President Benjamin Harrison (aged 65; Charles City County, VA, USA)
* May 9 – Francis Hopkinson, signer of Declaration of Independence (aged 53; Philadelphia, PA, USA)
* July 22 – John Roth, Prussian clergyman (aged 65; York, PA, USA)
==External links==
* 1791 in the United States
Category:United States History: Volume 2