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Continental Expansion, 18201850

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The Mexican American War. Internal Tensions. The Expansionist Impulse ... New Mexico, The Bear Flag Republic, and California. Stephen Kearny ... – PowerPoint PPT presentation

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Title: Continental Expansion, 18201850


1
Continental Expansion, 1820-1850
  • The Expansionist Impulse
  • Western Territories
  • Expansion and Sectionalism, 1840-1848
  • The Mexican American War
  • Internal Tensions

2
The Expansionist Impulse
  • Manifest Destiny The Temple of Liberty
  • John L. OSullivan United States Magazine and
    Democratic Review (July-August 1845)
  • Other Motivations
  • Oregon and the Agrarian Ideal
  • California and Asian Ports
  • Sectional Issues

3
Western Territories
  • Oregon
  • Shared w/Britain 1818
  • Massive American Migration
  • 5440 or Fight!
  • Mexican Territories
  • Centralist/Federalist Controversy
  • Texas
  • Moses/Stephen Austin
  • The Republic of Texas
  • Declaration of Independence March 2, 1836
  • Goliad The Alamo
  • The Battle of San Jacinto April 21, 1836
  • Texas denied admission to the Union
  • California
  • The Californios and Mexican Independence
  • American Business Interests
  • American Immigration

4
Expansion and Sectionalism, 1840-1848
  • Expansion and the Election of 1844
  • Northerners and Oregon
  • Southern Democrats and Texas
  • Northern Whigs Oppose Expansion
  • 1844 Whigs choose Henry Clay as Pres. Candidate
  • Dems. choose ardent expansionist James K. Polk
  • Oregon, Texas, California
  • Polk Wins
  • January 1845 Congress annexes Texas
  • June 1845 agreement with Britain over Oregon

5
The Mexican-American War
  • The Slidell Mission to Mexico
  • The Border Dispute leads to war.
  • Opponents of the War
  • Abraham Lincoln and the Whigs
  • Northern Reformers and Abolitionists
  • Emerson, Thoreau
  • New Mexico, The Bear Flag Republic, and
    California
  • Stephen Kearny
  • Winfield Scott Marches on Mexico City
  • The All Mexico Idea
  • The Treaty of Guadalupe Hidalgo Feb. 2, 1848
  • The Wilmot Proviso
  • Exclude slavery from territory acquired from
    Mexico
  • Debate along sectional lines

6
Mexican War (map)
7
Growth of the U.S. to 1853 (map)
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