![Mexican Cession](https://upload.wikimedia.org/wikipedia/commons/7/76/Mexican_Cession.png)
The Mexican Cession ( es, Cesión mexicana) is the region in the modern-day
southwestern United States
The Southwestern United States, also known as the American Southwest or simply the Southwest, is a geographic and cultural region of the United States that generally includes Arizona, New Mexico, and adjacent portions of California, Colorado, Ne ...
that
Mexico
Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...
originally controlled, then ceded to the
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...
in the
Treaty of Guadalupe Hidalgo
The Treaty of Guadalupe Hidalgo ( es, Tratado de Guadalupe Hidalgo), officially the Treaty of Peace, Friendship, Limits, and Settlement between the United States of America and the United Mexican States, is the peace treaty that was signed on 2 ...
in 1848 after the
Mexican–American War
The Mexican–American War, also known in the United States as the Mexican War and in Mexico as the (''United States intervention in Mexico''), was an armed conflict between the United States and Mexico from 1846 to 1848. It followed the 1 ...
. This region had not been part of the areas east of the
Rio Grande
The Rio Grande ( and ), known in Mexico as the Río Bravo del Norte or simply the Río Bravo, is one of the principal rivers (along with the Colorado River) in the southwestern United States and in northern Mexico.
The length of the Rio G ...
that had been claimed by the
Republic of Texas
The Republic of Texas ( es, República de Tejas) was a sovereign state in North America that existed from March 2, 1836, to February 19, 1846, that bordered Mexico, the Republic of the Rio Grande in 1840 (another breakaway republic from Mex ...
, though the
Texas annexation
The Texas annexation was the 1845 annexation of the Republic of Texas into the United States. Texas was admitted to the Union as the 28th state on December 29, 1845.
The Republic of Texas declared independence from the Republic of Mexico on ...
resolution two years earlier had not specified the southern and western boundary of the new
state of Texas
Texas (, ; Spanish: ''Texas'', ''Tejas'') is a state in the South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2020, it is the second-largest U.S. state by ...
. At roughly , the Mexican Cession was the third-largest acquisition of territory in U.S. history, surpassed only by the
Louisiana Purchase
The Louisiana Purchase (french: Vente de la Louisiane, translation=Sale of Louisiana) was the acquisition of the territory of Louisiana by the United States from the French First Republic in 1803. In return for fifteen million dollars, or app ...
and the
Alaska Purchase
The Alaska Purchase (russian: Продажа Аляски, Prodazha Alyaski, Sale of Alaska) was the United States' acquisition of Alaska from the Russian Empire. Alaska was formally transferred to the United States on October 18, 1867, through a ...
.
Most of the area had been the Mexican territory of
Alta California
Alta California ('Upper California'), also known as ('New California') among other names, was a province of New Spain, formally established in 1804. Along with the Baja California peninsula, it had previously comprised the province of , but ...
, while a southeastern strip on the
Rio Grande
The Rio Grande ( and ), known in Mexico as the Río Bravo del Norte or simply the Río Bravo, is one of the principal rivers (along with the Colorado River) in the southwestern United States and in northern Mexico.
The length of the Rio G ...
had been part of
Santa Fe de Nuevo México, most of whose area and population were east of the Rio Grande on land that had been claimed by the
Republic of Texas
The Republic of Texas ( es, República de Tejas) was a sovereign state in North America that existed from March 2, 1836, to February 19, 1846, that bordered Mexico, the Republic of the Rio Grande in 1840 (another breakaway republic from Mex ...
since 1835, but never controlled or even approached aside from the
Texan Santa Fe Expedition
The Texan Santa Fe Expedition was a commercial and military expedition to secure the Republic of Texas's claims to parts of Northern New Mexico for Texas in 1841. The expedition was unofficially initiated by the then-President of Texas, Mirabeau ...
. Mexico controlled the territory later known as the Mexican Cession, with considerable local autonomy punctuated by several revolts and few troops sent from central Mexico, in the period from 1821–22 after
independence from Spain up through 1846 when U.S. military forces seized control of California and New Mexico on the outbreak of the
Mexican-American War
Mexican Americans ( es, mexicano-estadounidenses, , or ) are Americans of full or partial Mexicans, Mexican heritage. In 2019, Mexican Americans comprised 11.3% of the US population and 61.5% of all Hispanic and Latino Americans. In 2019, 71% ...
. The northern boundary of the
42nd parallel north
The 42nd parallel north is a circle of latitude that is 42 degrees north of the Earth's equatorial plane. It crosses Europe, the Mediterranean Sea, Asia, the Pacific Ocean, North America, and the Atlantic Ocean.
At this latitude the sun is v ...
was set by the
Adams–Onís Treaty
The Adams–Onís Treaty () of 1819, also known as the Transcontinental Treaty, the Florida Purchase Treaty, or the Florida Treaty,Weeks, p.168. was a treaty between the United States and Spain in 1819 that ceded Florida to the U.S. and defined t ...
signed by the United States and Spain in 1821 and ratified by Mexico in 1831 in the
Treaty of Limits (Mexico–United States)
The Treaty of Limits between the United Mexican States and the United States of America is an 1828 treaty between First Mexican Republic, Mexico and the United States that confirmed the borders between the two states. The Treaty of Limits was the ...
. The eastern boundary of the Mexican Cession was the Texas claim at the Rio Grande and extending north from the headwaters of the Rio Grande, not corresponding to Mexican territorial boundaries. The southern boundary was set by the Treaty of Guadalupe Hidalgo, which followed the Mexican boundaries between Alta California (to the north) and
Baja California
Baja California (; 'Lower California'), officially the Free and Sovereign State of Baja California ( es, Estado Libre y Soberano de Baja California), is a state in Mexico. It is the northernmost and westernmost of the 32 federal entities of Mex ...
and
Sonora
Sonora (), officially Estado Libre y Soberano de Sonora ( en, Free and Sovereign State of Sonora), is one of the 31 states which, along with Mexico City, comprise the Administrative divisions of Mexico, Federal Entities of Mexico. The state is d ...
(to the south).
Mexican–American War
![Mexico 1835-1846 administrative map-en](https://upload.wikimedia.org/wikipedia/commons/b/b2/Mexico_1835-1846_administrative_map-en.svg)
Alta California and
Santa Fe de Nuevo México were captured soon after the start of the war and the last resistance there was subdued in January 1847, but Mexico would not accept the loss of territory. Therefore, during 1847, troops from the United States invaded central Mexico and occupied the Mexican capital of
Mexico City
Mexico City ( es, link=no, Ciudad de México, ; abbr.: CDMX; Nahuatl: ''Altepetl Mexico'') is the capital and largest city of Mexico, and the most populous city in North America. One of the world's alpha cities, it is located in the Valley o ...
, but still no Mexican government was willing to ratify the transfer of the northern territories to the U.S. It was uncertain whether any treaty could be reached. There was even an
All of Mexico Movement proposing complete
annexation
Annexation (Latin ''ad'', to, and ''nexus'', joining), in international law, is the forcible acquisition of one state's territory by another state, usually following military occupation of the territory. It is generally held to be an illegal act ...
of Mexico among Eastern Democrats but opposed by Southerners like
John C. Calhoun who wanted the additional territory for their crops but not the large population of central Mexico.
Eventually
Nicholas Trist
Nicholas Philip Trist (June 2, 1800 – February 11, 1874) was an American lawyer, diplomat, planter, and businessman. Even though he was dismissed by President James K. Polk as the negotiator with the Mexican government, he negotiated the Treat ...
forged the
Treaty of Guadalupe Hidalgo
The Treaty of Guadalupe Hidalgo ( es, Tratado de Guadalupe Hidalgo), officially the Treaty of Peace, Friendship, Limits, and Settlement between the United States of America and the United Mexican States, is the peace treaty that was signed on 2 ...
, explicitly redefining the border between Mexico and the United States in early 1848 after President Polk had already attempted to recall him from Mexico as a failure. Although Mexico did not overtly cede any land under the treaty, the redefined border had the effect of transferring Alta California and Santa Fe de Nuevo México to the control of the United States. Equally important, the new border also acknowledged Mexico's loss of Texas, both the core eastern portion and the western claims, neither of which had been formally recognized by Mexico until that time.
The U.S. Senate approved the treaty, rejecting amendments from both
Jefferson Davis
Jefferson F. Davis (June 3, 1808December 6, 1889) was an American politician who served as the president of the Confederate States from 1861 to 1865. He represented Mississippi in the United States Senate and the House of Representatives as a ...
to also annex most of northeastern Mexico and
Daniel Webster
Daniel Webster (January 18, 1782 – October 24, 1852) was an American lawyer and statesman who represented New Hampshire and Massachusetts in the U.S. Congress and served as the U.S. Secretary of State under Presidents William Henry Harrison, ...
not to take even Alta California and Santa Fe de Nuevo México. The United States also paid $15,000,000 ($482 million in 2016 dollars) for the damage caused by the war in Mexico's territory and agreed to assume $3.25 million in debts to U.S. citizens.
The Mexican Cession as ordinarily understood (i.e. excluding lands claimed by Texas) amounted to , or 14.9% of the total area of the current United States. If the disputed western Texas claims are also included, that amounts to a total of . If all of Texas had been seized, since Mexico had not previously acknowledged the loss of any part of Texas, the total area ceded under this treaty comes to .
Considering the seizures, including all of Texas, Mexico lost 54% of its pre-1836 territory in the Treaty of Guadalupe Hidalgo.
[Table 1.1 Acquisition of the Public Domain 1781–1867](_blank)
For only fifteen years from 1821 (when
Mexican independence
The Mexican War of Independence ( es, Guerra de Independencia de México, links=no, 16 September 1810 – 27 September 1821) was an armed conflict and political process resulting in Mexico's independence from Spain. It was not a single, co ...
was secured) and the Texan Revolt in 1836, the Mexican Cession (excluding Texas) formed approximately 42% of the country of Mexico; prior to that, it had been a part of the Spanish colony of
New Spain
New Spain, officially the Viceroyalty of New Spain ( es, Virreinato de Nueva España, ), or Kingdom of New Spain, was an integral territorial entity of the Spanish Empire, established by Habsburg Spain during the Spanish colonization of the Am ...
for some three centuries. Beginning in the early seventeenth century, a chain of Roman Catholic missions and settlements extended into the New Mexico region, mostly following the course of the
Rio Grande
The Rio Grande ( and ), known in Mexico as the Río Bravo del Norte or simply the Río Bravo, is one of the principal rivers (along with the Colorado River) in the southwestern United States and in northern Mexico.
The length of the Rio G ...
from the
El Paso
El Paso (; "the pass") is a city in and the seat of El Paso County in the western corner of the U.S. state of Texas. The 2020 population of the city from the U.S. Census Bureau was 678,815, making it the 23rd-largest city in the U.S., the s ...
area to
Santa Fe.
Subsequent organization and the North–South conflict
Soon after the war started and long before negotiation of the new
Mexico–United States border
The Mexico–United States border ( es, frontera Estados Unidos–México) is an international border separating Mexico and the United States, extending from the Pacific Ocean in the west to the Gulf of Mexico in the east. The border traver ...
, the question of slavery in the territories to be acquired polarized the Northern and
Southern United States
The Southern United States (sometimes Dixie, also referred to as the Southern States, the American South, the Southland, or simply the South) is a geographic and cultural region of the United States of America. It is between the Atlantic Ocean ...
in the bitterest sectional conflict up to this time, which lasted for a deadlock of four years during which the
Second Party System
Historians and political scientists use Second Party System to periodize the political party system operating in the United States from about 1828 to 1852, after the First Party System ended. The system was characterized by rapidly rising levels ...
broke up,
Mormon pioneers settled
Utah
Utah ( , ) is a state in the Mountain West subregion of the Western United States. Utah is a landlocked U.S. state bordered to its east by Colorado, to its northeast by Wyoming, to its north by Idaho, to its south by Arizona, and to it ...
, the
California Gold Rush
The California Gold Rush (1848–1855) was a gold rush that began on January 24, 1848, when gold was found by James W. Marshall at Sutter's Mill in Coloma, California. The news of gold brought approximately 300,000 people to California fro ...
settled
California
California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...
, and New Mexico under a federal military U.S government turned back Texas's attempt to assert control over territory Texas claimed as far west as the Rio Grande. Eventually the
Compromise of 1850
The Compromise of 1850 was a package of five separate bills passed by the United States Congress in September 1850 that defused a political confrontation between slave and free states on the status of territories acquired in the Mexican–Am ...
preserved the Union, but only for another decade. Proposals included:
*The
Wilmot Proviso
The Wilmot Proviso was an unsuccessful 1846 proposal in the United States Congress to ban slavery in territory acquired from Mexico in the Mexican–American War. The conflict over the Wilmot Proviso was one of the major events leading to the ...
, which was created by Congressman
David Wilmot
David Wilmot (January 20, 1814 – March 16, 1868) was an American politician and judge. He served as Representative and a Senator for Pennsylvania and as a judge of the Court of Claims. He is best known for being the prime sponsor and epon ...
, banning slavery in any new territory to be acquired from Mexico, not including Texas which had been annexed the previous year. Passed by the
United States House of Representatives
The United States House of Representatives, often referred to as the House of Representatives, the U.S. House, or simply the House, is the Lower house, lower chamber of the United States Congress, with the United States Senate, Senate being ...
in August 1846 and February 1847 but not the
Senate
A senate is a deliberative assembly, often the upper house or chamber of a bicameral legislature. The name comes from the ancient Roman Senate (Latin: ''Senatus''), so-called as an assembly of the senior (Latin: ''senex'' meaning "the el ...
. Later an effort to attach the proviso to the
Treaty of Guadalupe Hidalgo
The Treaty of Guadalupe Hidalgo ( es, Tratado de Guadalupe Hidalgo), officially the Treaty of Peace, Friendship, Limits, and Settlement between the United States of America and the United Mexican States, is the peace treaty that was signed on 2 ...
also failed.
*Failed amendments to the Wilmot Proviso by
William W. Wick
William W. Wick (February 23, 1796 – May 19, 1868) was a U.S. Representative from Indiana and Secretary of State of Indiana. He was a lawyer and over his career he was a judge for 15 years. President Franklin Pierce appointed him Postmaster of ...
and then
Stephen Douglas
Stephen Arnold Douglas (April 23, 1813 – June 3, 1861) was an American politician and lawyer from Illinois. A senator, he was one of two nominees of the badly split Democratic Party for president in the 1860 presidential election, which wa ...
extending the
Missouri Compromise
The Missouri Compromise was a federal legislation of the United States that balanced desires of northern states to prevent expansion of slavery in the country with those of southern states to expand it. It admitted Missouri as a slave state and ...
line (
36°30' parallel north) west to the Pacific, allowing slavery in most of present-day New Mexico and
Arizona
Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a state in the Southwestern United States. It is the 6th largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is part of the Fou ...
,
Las Vegas, Nevada
Las Vegas (; Spanish for "The Meadows"), often known simply as Vegas, is the 25th-most populous city in the United States, the most populous city in the state of Nevada, and the county seat of Clark County. The city anchors the Las Vegas ...
, and
Southern California
Southern California (commonly shortened to SoCal) is a geographic and Cultural area, cultural region that generally comprises the southern portion of the U.S. state of California. It includes the Los Angeles metropolitan area, the second most po ...
, as well as any other territories that might be acquired from Mexico. The line was again proposed by the
Nashville Convention {{Events leading to US Civil War
The Nashville Convention was a political meeting held in Nashville, Tennessee, on June 3–11, 1850. Delegates from nine slave states met to consider secession, if the United States Congress decided to ban slavery ...
of June 1850.
*
Popular sovereignty
Popular sovereignty is the principle that the authority of a state and its government are created and sustained by the consent of its people, who are the source of all political power. Popular sovereignty, being a principle, does not imply any ...
, developed by
Lewis Cass and Douglas as the eventual
Democratic Party Democratic Party most often refers to:
*Democratic Party (United States)
Democratic Party and similar terms may also refer to:
Active parties Africa
*Botswana Democratic Party
*Democratic Party of Equatorial Guinea
*Gabonese Democratic Party
*Demo ...
position, letting each territory decide whether to allow slavery.
*
William L. Yancey's "Alabama Platform," endorsed by the
Alabama
(We dare defend our rights)
, anthem = "Alabama (state song), Alabama"
, image_map = Alabama in United States.svg
, seat = Montgomery, Alabama, Montgomery
, LargestCity = Huntsville, Alabama, Huntsville
, LargestCounty = Baldwin County, Al ...
and
Georgia
Georgia most commonly refers to:
* Georgia (country), a country in the Caucasus region of Eurasia
* Georgia (U.S. state), a state in the Southeast United States
Georgia may also refer to:
Places
Historical states and entities
* Related to the ...
legislatures and by Democratic state conventions in
Florida
Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, and to ...
and
Virginia
Virginia, officially the Commonwealth of Virginia, is a state in the Mid-Atlantic and Southeastern regions of the United States, between the Atlantic Coast and the Appalachian Mountains. The geography and climate of the Commonwealth ar ...
, called for no restrictions on slavery in the territories either by the federal government or by territorial governments before statehood, opposition to any candidates supporting either the Wilmot Proviso or popular sovereignty, and federal legislation overruling Mexican anti-slavery laws.
*General
Zachary Taylor
Zachary Taylor (November 24, 1784 – July 9, 1850) was an American military leader who served as the 12th president of the United States from 1849 until his death in 1850. Taylor was a career officer in the United States Army, rising to th ...
, who became the
Whig candidate in 1848 and then President from March 1849 to July 1850, proposed after becoming President that the entire area become two free states, called California and New Mexico but much larger than the eventual ones. None of the area would be left as an unorganized or
organized territory
Territories of the United States are sub-national administrative divisions overseen by the federal government of the United States. The various American territories differ from the U.S. states and tribal reservations as they are not sover ...
, avoiding the question of slavery in the territories.
*The Mormons' proposal for a
State of Deseret
The State of Deseret (modern pronunciation , contemporaneously ) was a proposed state of the United States, proposed in 1849 by settlers from the Church of Jesus Christ of Latter-day Saints (LDS Church) in Salt Lake City. The provisional stat ...
seizing areas from portions of the Mexican Cession but excluding the largest populations in
Northern California
Northern California (colloquially known as NorCal) is a geographic and cultural region that generally comprises the northern portion of the U.S. state of California. Spanning the state's northernmost 48 counties, its main population centers incl ...
and central
New Mexico
)
, population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano)
, seat = Santa Fe
, LargestCity = Albuquerque
, LargestMetro = Tiguex
, OfficialLang = None
, Languages = English, Spanish ( New Mexican), Navajo, Ker ...
was considered unlikely to succeed in
Congress
A congress is a formal meeting of the representatives of different countries, constituent states, organizations, trade unions, political parties, or other groups. The term originated in Late Middle English to denote an encounter (meeting of ...
, but in 1849 President
Taylor
Taylor, Taylors or Taylor's may refer to:
People
* Taylor (surname)
** List of people with surname Taylor
* Taylor (given name), including Tayla and Taylah
* Taylor sept, a branch of Scottish clan Cameron
* Justice Taylor (disambiguation)
Pl ...
sent his agent John Wilson westward with a proposal to combine California and Deseret as a single state, decreasing the number of new
free states and the erosion of Southern parity in the Senate, while legitimizing
the Church of Jesus Christ of Latter-day Saints
The Church of Jesus Christ of Latter-day Saints, informally known as the LDS Church or Mormon Church, is a Nontrinitarianism, nontrinitarian Christianity, Christian church that considers itself to be the Restorationism, restoration of the ...
.
*Senator
Thomas Hart Benton in December 1849 or January 1850: Texas's western and northern boundaries would be the
102nd meridian west and
34th parallel north.
*Senator
John Bell (with the assent of Texas) in February 1850: New Mexico would get all Texas land north of the
34th parallel north (including today's
Texas Panhandle
The Texas Panhandle is a region of the U.S. state of Texas consisting of the northernmost 26 counties in the state. The panhandle is a square-shaped area bordered by New Mexico to the west and Oklahoma to the north and east. It is adjacent to ...
), and the area to the south (including the southeastern part of today's
New Mexico
)
, population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano)
, seat = Santa Fe
, LargestCity = Albuquerque
, LargestMetro = Tiguex
, OfficialLang = None
, Languages = English, Spanish ( New Mexican), Navajo, Ker ...
) would be divided at the
Colorado River (Texas) into two
slave states
In the United States before 1865, a slave state was a state in which slavery and the internal or domestic slave trade were legal, while a free state was one in which they were not. Between 1812 and 1850, it was considered by the slave states ...
, balancing the admission of California and New Mexico as free states.
*First draft of the
compromise of 1850
The Compromise of 1850 was a package of five separate bills passed by the United States Congress in September 1850 that defused a political confrontation between slave and free states on the status of territories acquired in the Mexican–Am ...
: Texas's northwestern boundary would be a straight diagonal line from the Rio Grande north of El Paso to the
Red River of the South
The Red River, or sometimes the Red River of the South, is a major river in the Southern United States. It was named for its reddish water color from passing through red-bed country in its watershed. It is one of several rivers with that name ...
at the
100th meridian west (the southwestern corner of today's
Oklahoma
Oklahoma (; Choctaw language, Choctaw: ; chr, ᎣᎧᎳᎰᎹ, ''Okalahoma'' ) is a U.S. state, state in the South Central United States, South Central region of the United States, bordered by Texas on the south and west, Kansas on the nor ...
).
![USA Territorial Growth 1850](https://upload.wikimedia.org/wikipedia/commons/f/fb/USA_Territorial_Growth_1850.jpg)
*The
Compromise of 1850
The Compromise of 1850 was a package of five separate bills passed by the United States Congress in September 1850 that defused a political confrontation between slave and free states on the status of territories acquired in the Mexican–Am ...
, proposed by
Henry Clay
Henry Clay Sr. (April 12, 1777June 29, 1852) was an American attorney and statesman who represented Kentucky in both the U.S. Senate and House of Representatives. He was the seventh House speaker as well as the ninth secretary of state, al ...
in January 1850, guided to passage by Douglas over Northern Whig and Southern Democrat opposition, and enacted September 1850, admitted California as a free state including Southern California and organized
Utah Territory
The Territory of Utah was an organized incorporated territory of the United States that existed from September 9, 1850, until January 4, 1896, when the final extent of the territory was admitted to the Union as the State of Utah, the 45th state. ...
and
New Mexico Territory
The Territory of New Mexico was an organized incorporated territory of the United States from September 9, 1850, until January 6, 1912. It was created from the U.S. provisional government of New Mexico, as a result of ''Santa Fe de Nuevo México ...
with slavery to be decided by popular sovereignty. Texas dropped its claim to the disputed northwestern areas in return for debt relief, and the areas were divided between the two new territories and
unorganized territory. El Paso where Texas had successfully established county government was left in Texas. No southern territory dominated by Southerners (like the later short-lived
Confederate Territory of Arizona
Arizona Territory, colloquially referred to as Confederate Arizona, was an organized incorporated territory of the Confederate States that existed from August 1, 1861 to May 26, 1865, when the Confederate States Army Trans-Mississippi Depar ...
) was created. Also, the
slave trade
Slavery and enslavement are both the state and the condition of being a slave—someone forbidden to quit one's service for an enslaver, and who is treated by the enslaver as property. Slavery typically involves slaves being made to perf ...
was abolished in
Washington, D.C.
)
, image_skyline =
, image_caption = Clockwise from top left: the Washington Monument and Lincoln Memorial on the National Mall, United States Capitol, Logan Circle, Jefferson Memorial, White House, Adams Morgan, ...
(but not slavery itself), and the
Fugitive Slave Act
A fugitive (or runaway) is a person who is fleeing from custody, whether it be from jail, a government arrest, government or non-government questioning, vigilante violence, or outraged private individuals. A fugitive from justice, also kno ...
was strengthened.
Gadsden Purchase
It quickly became apparent that the Mexican Cession did not include a feasible route for a
transcontinental railroad
A transcontinental railroad or transcontinental railway is contiguous railroad trackage, that crosses a continental land mass and has terminals at different oceans or continental borders. Such networks can be via the tracks of either a single ...
connecting to a southern port. The topography of the New Mexico Territory included mountains that naturally directed any railroad extending from the southern Pacific coast northward, to Kansas City, St. Louis, or Chicago. Southerners, anxious for the business such a railroad would bring (and hoping to establish a slave state beachhead on the Pacific coast),
agitated for the acquisition of railroad-friendly land at the expense of Mexico, thus bringing about the
Gadsden Purchase of 1853.
See also
* The
Zimmermann Telegram, which partly offered
Imperial German assistance to Mexico in returning a sizable portion of the Mexican Cession's southern territory, as well as the U.S. state of
Texas
Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2 ...
to Mexico in 1917.
References
External links
A Continent Divided: The U.S.-Mexico War Center for Greater Southwestern Studies, the University of Texas at Arlington
{{Authority control
Treaties of the Mexican–American War
1848 treaties
History of United States expansionism
Mexican–American War
1848 in Mexico
1848 in the United States
1848 in California
Treaties involving territorial changes
Territorial evolution of Mexico
Territorial evolution of the United States