1848

Events from the year 1848 in the United States. Mexican-American War ends.
==Incumbents==
===Federal Government===
* President: James K. Polk (D-TN)
* Vice President: George M. Dallas (D-PA)
* Chief Justice: Roger B. Taney (MD)
* Speaker of the House of Representatives: Robert Charles Winthrop (W-MA)
* Congress: 30th
==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)
==External links==
* 1848 in the United States
Category:United States History: Volume 7