1848

Events from the year **1848 in the United States**. Mexican-American War ends.

Governors
* Governor of Alabama: Reuben Chapman (Democratic)
* Governor of Arkansas: Thomas Stevenson Drew (Democratic)
* Governor of Connecticut: Clark Bissell (Whig)
* Governor of Delaware: William Tharp (Democratic)
* Governor of Florida: William Dunn Moseley (Democratic)
* Governor of Georgia: George W. Towns (Democratic)
* Governor of Illinois: Augustus C. French (Democratic)
* Governor of Indiana: James Whitcomb (Democratic) (until December 26), Paris C. Dunning (Democratic) (starting December 26)
* Governor of Iowa: Ansel Briggs (Democratic)
* Governor of Kentucky: William Owsley (Whig) (until September 6), John J. Crittenden (Whig) (starting September 6)
* Governor of Louisiana: Isaac Johnson (Democratic)
* Governor of Maine: John W. Dana (Democratic)
* Governor of Maryland: Thomas Pratt (Democratic) (until January 3), Philip F. Thomas (Democratic) (starting January 3)
* Governor of Massachusetts: George N. Briggs (Democratic)
* Governor of Michigan: William L. Greenly (Democratic) (until January 3), Epaphroditus Ransom (Democratic) (starting January 3)
* Governor of Mississippi: Albert G. Brown (Democratic) (until January 10), Joseph W. Matthews (Democratic) (starting January 10)
* Governor of Missouri: John C. Edwards (Democratic) (until November 20), Austin Augustus King (Democratic) (starting November 20)
* Governor of New Hampshire: Jared W. Williams (Democratic)
* Governor of New Jersey: Charles C. Stratton (Whig) (until January 18), Daniel Haines (Democratic) (starting January 18)
* Governor of New York: John Young (Whig)
* Governor of North Carolina: William Alexander Graham (Whig)
* Governor of Ohio: William Bebb (Whig)
* Governor of Pennsylvania:
	+ until July 9: Francis R. Shunk (Democratic)
	+ July 9-July 26: vacant
	+ starting July 26: William F. Johnston (Whig)
* Governor of Rhode Island: Elisha Harris (Law and Order)
* Governor of South Carolina: David Johnson (Democratic) (until December 12), Whitemarsh B. Seabrook (Democratic) (starting December 12)
* Governor of Tennessee: Neill S. Brown (Whig)
* Governor of Texas: George T. Wood (Democratic)
* Governor of Vermont: Horace Eaton (Whig) (until October), Carlos Coolidge (Whig) (starting October)
* Governor of Virginia: William Smith (Democratic)
* Governor of Wisconsin: vacant (until June 7), Nelson Dewey (Democratic) (starting June 7)

Lieutenant Governors
* Lieutenant Governor of Connecticut: Charles J. McCurdy (Whig)
* Lieutenant Governor of Illinois: Joseph Wells (Democratic)
* Lieutenant Governor of Indiana: Paris C. Dunning (Democratic) (until December 26), vacant (starting December 26)
* Lieutenant Governor of Kentucky: Archibald Dixon (Whig) (until September 6), John LaRue Helm (Whig) (starting September 6)
* Lieutenant Governor of Louisiana: Trasimond Landry (Whig)
* Lieutenant Governor of Massachusetts: John Reed Jr. (political party unknown)
* Lieutenant Governor of Michigan: vacant (until month and day unknown), William M. Fenton (Democratic) (starting month and day unknown)
* Lieutenant Governor of Missouri: James Young (Democratic) (until November 20), Thomas Lawson Price (Democratic) (starting November 20)
* Lieutenant Governor of New York: Hamilton Fish (Democratic)
* Lieutenant Governor of Rhode Island: Edward W. Lawton (political party unknown) (starting May 4)
* Lieutenant Governor of South Carolina: William Cain (Democratic) (until December 12), William Henry Gist (Democratic Party) (starting December 12)
* Lieutenant Governor of Texas: John Alexander Greer (political party unknown)
* Lieutenant Governor of Vermont: Leonard Sargeant (Whig) (until October), Robert Pierpoint (Whig) (starting October)
* Lieutenant Governor of Wisconsin: John E. Holmes (Democratic) (starting June 7)

## Events

### January - March

* January 11 – Mexican–American War: Capture of San Blas.
* January 18 – Mexican–American War: Landing at Manzanillo.
* January 22 – Mexican–American War: Siege of San José del Cabo begins.
* January 24 – California Gold Rush: James W. Marshall finds gold at Sutter's Mill, in Coloma, California.
* January 30 – Mexican–American War: Skirmish at Cochori.
* January 31 – The Washington Monument is established.
* February 2 – Mexican–American War: The Treaty of Guadalupe Hidalgo is signed, ending the war and ceding to the U.S. virtually all of what becomes the southwestern United States.
* February 13 – Skirmish at Bocachicacampo.
* February 14 – Siege of San José del Cabo ends.
* February 25 – Action of Sequalteplan.
* March 6 – Truce ordered the official end of hostilities between Mexico and the United States.
* March 16 – Battle of Santa Cruz de Rosales.
* March 18 – The Boston Public Library is founded by an act of the Great and General Court of Massachusetts.
* March 30 – Skirmish of Todos Santos.

### April - June

* April 3 – The Chicago Board of Trade is founded by 82 Chicago merchants and business leaders.
* April 23 – The Illinois and Michigan Canal is completed.
* May 19 – The Treaty of Guadalupe Hidalgo (February 2), ending the Mexican–American War, is ratified by the Mexican government.
* May 29 – Wisconsin admitted becomes the 30th U.S. state.
* June 14 – The Liberty Party National Convention is held in Buffalo, New York. Presidential candidate Gerrit Smith establishes woman suffrage as a party plank.

### July - September

* July 19 – Seneca Falls Convention: The first women's rights convention opens in Seneca Falls, New York.
* July 26 – The University of Wisconsin–Madison is founded.
* August 14 – Oregon Territory is established.
* August 19 – California Gold Rush: The *New York Herald* breaks the news to the East Coast of the United States that there is a gold rush in California (although the rush started in January).
* September 12 – One of the successes of the Revolutions of 1848, the Swiss Federal Constitution, patterned on the U.S. Constitution, enters into force, creating a federal republic and one of the first modern democratic states in Europe.
* September 13 – Vermont railroad worker Phineas Gage incredibly survives a 3-foot-plus iron rod being driven through his head.

### October - December

* November 1 – The first medical school for women, The Boston Female Medical School (which later merges with Boston University School of Medicine), opens in Boston, Massachusetts.
* November 7 – U.S. presidential election, 1848: Whig Zachary Taylor of Louisiana defeats Democrat Lewis Cass of Michigan in the first U.S. presidential election to be held in every state on the same day.

## Memoriam

* February 11 – Thomas Cole, landscape painter (aged 47; Catskill, NY, USA)
* February 23 – John Quincy Adams, 6th President of the United States from 1825 to 1829 (aged 80; Washington, DC, USA)
* March 29 – John Jacob Astor, businessman (aged 84; New York City, NY, USA)
* April 29 – Chester Ashley, U.S. Senator from Arkansas from 1844 to 1848 (aged 57; Washington, DC, USA)
* May 18 – William Leidesdorff, businessman (aged 37; San Francisco, Mexican Session (Now CA), USA)
* June 26 – Stevenson Archer, U.S. Congressman from Maryland from 1819 to 1821 (aged 61; Churchville, MD, USA)
* July 20 – Francis R. Shunk, politician (aged 59; Harrisburg, PA, USA)
* August 15 – Timothy Olmstead, composer, fifer in the American Revolutionary War (aged 89; Rome, NY, USA)
* August 30 – Simon Willard, horologist (aged 95; Boston, MA, USA)
* October 25 – Dixon Hall Lewis, U.S. Senator from Alabama from 1844 to 1848 (aged 46; New York City, NY, USA)
* December 31 – Ambrose Hundley Sevier, U.S. Senator from Arkansas from 1836 to 1848 (aged 47; Little Rock, AR, USA)