mexican- american war 1846-1848. adams-onis treaty 1819 spain & u.s. sign treaty gives florida...
TRANSCRIPT
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Mexican-American War1846-1848
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Adams-Onis Treaty1819
• Spain & U.S. sign treaty
• Gives Florida to U.S.
• Sets U.S./Mexico border
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Before the War 1819 – The U.S. and Spain determine Mexico-U.S.
boundary
1821 – Mexican Independence
1823 – Mexico offered cheap land to Americans who wanted to settle in Texas
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Annexation of Texas Texas wins independence from Mexico, Texans voted to join the U.S.
(1844)
Americans divided: Another potential slave state Could lead to war with Mexico
Mexican leader Santa Anna warned that Texas annexation would be “equivalent to a declaration of war against the Mexican Republic.”
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Polk Wins, Texas Joins
In 1844, Polk (strong supporter of expansion) won the presidency
In 1845, Congress approved annexation
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Steps to War
July of 1845 – President Polk
orders General Zachary Taylor to
Texas
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Why did the Mexican-American War begin?
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Quick Source
Read the quote:
Who started the war?
Should we trust this source?
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Document A Source:
What’s the most important thing about the source? How might it influence what this source says?
Finish reading Document A
Answer questions 1-3 with your partner
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Document B
Read Document B
Answer questions 4-9
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What are your initial conclusions?
What are the differences between the accounts?
Which do you believe, and why?
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Mexican-American War Begins
In 1846, American troops marched toward the Rio Grande
Mexican army kills several of the people they see as invaders
In 1846, Polk declares war on Mexico
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Mexican-American War Key Events
June of 1846 - California settlers write a Constitution and declare themselves a republic Quickly declare themselves part of the U.S.
1847 – American troops occupy Mexico City
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Treaty of Guadalupe Hidalgo, 1848
United States got 500,000+ square miles of valuable territory
U.S. also emerged as a world power
America expanded to the Pacific
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Final Qs
1. Why did the Mexican-American War begin?
2. How is Manifest Destiny related to the Mexican-American War?
3. One paragraph answer:
Overall, did Manifest Destiny primarily have a positive impact or a negative impact? Why? Use specific historical evidence to support your point.