Mexican American War Classroom Resources

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Mexican American War Classroom Resources Unit 2: The Mexican American War Classroom Resources Background: Mexican American War In the early 19th century, Mexico and America were very different countries, the result of their very different colonial histories. Mexico admired the republican spirit of its stronger neighbor, but worried about its territorial ambitions. When Texas seceded from Mexico in 1836, Mexicans suspected that America was behind it. Nine years later, responding to pressure from the South to bring another slave state into the Union, America annexed Texas outright. Mexico did not object, but the United States dispatched an army to Corpus Christi, led by General Zachary Taylor. Young Ulysses S. Grant was among his forces. President James K. Polk argued that slavery was not the issue in the Mexican War, but anti-slavery forces saw things very differently. Polk had run for president on a platform that included annexing Texas to enlarge the slave-holding area of the United States. Thanks to slave states’ greater power in the U.S. Senate, the Wilmot Proviso, which would have prohibited the spread of slavery into territory won from Mexico, failed in 1846 and many times thereafter. The growing political power of slave states in Washington led to fears that slavery would be introduced in newly acquired Western territories, further adding to the power of pro- slavery forces. The delicate balance that the country had sought to maintain between slave and free states was profoundly at risk. In the spring of 1846, General Taylor provoked the Mexican army to cross the Rio Grande, which the Americans had declared the border between the countries. Mexico believed the border to be the Nueces River, several miles to the north. So the land between the rivers was contested. When 11 of Taylor’s soldiers were killed, President Polk told Congress that “American blood had been shed on American soil,” and war was declared on May 13, 1846. Hostilities ended 16 months later, when General Winfield Scott’s army won the final battle at Chapultepec and took the capital, Mexico City, which had been deserted by the Mexican military. The war that began over Texas ended with an America that stretched from the Atlantic to the Pacific coast. For a generation of West Point graduates, it provided an introduction to combat and an opportunity to know nearly all the officers then in the Regular Army—the men they would serve with and against in the Civil War. And it presented the nation with unresolved questions about the expansion of slavery into the West, which the Compromise of 1850 would try in vain to resolve. Unit 2: The Mexican American War Classroom Resources Resource 1: James K. Polk’s Message on War with Mexico Ex. Doc. No. 60 Hostilities by Mexico. Message from the President of the United States, relative to the invasion and commencement of hostilities by Mexico. May 11, 1846. Read, and referred to the Committee of the Whole House on the state of the Union. To the Senate and House of Representatives: The existing state of the relations between the United States and Mexico renders it proper that I should bring the subject to the consideration of Congress. … The grievous wrongs perpetrated by Mexico upon our citizens throughout a long period of years remain unredressed; and solemn treaties, pledging her public faith for this redress, have been disregarded. A government either unable or unwilling to enforce the execution of such treaties, fails to perform one of its plainest duties. … The cup of forbearance had been exhausted, even before the recent information from the frontier of the Del Norte; but now after reiterated menaces, Mexico has passed the boundary of the United States, has invaded our territory and shed American blood upon American soil. She has proclaimed that hostilities have commenced, and that the two nations are now at war. As war exists, and, not withstanding all our efforts to avoid it, exists by the act of Mexico herself, we are called upon by every consideration of duty and patriotism to vindicate with decision the honor, the rights, and the interest of our country. … In further vindication of our rights, and defence of our territory, I invoke the prompt action of Congress to recognize the existence of the war, and to place at the disposition of the Executive the means of prosecuting the war with vigor, and thus hastening the restoration of peace. … James K. Polk, Executive Document Number 6. Library of Congress. Unit 2: The Mexican American War Classroom Resources Resource 1: James K. Polk was elected president in 1844 because he appealed to voters’ hunger for national expansion. On this subject, he had enormous ambitions that were largely fulfilled during his one term in office. He wanted Texas to be an American state, and Congress passed a resolution annexing Texas even before he took office. He claimed the Oregon territory, which was in British hands. He offered Mexico $20 million for California and the New Mexico country – neither area had the state boundaries they have today. When the Mexican government declined the purchase offer, Polk sent the U.S. Army to intimidate Mexico with a show of force. The two sides did not agree on where the border lay between Texas and Mexico. Mexico believed it was the Nueces River; the United States claimed it was further south, at the Rio Grande. When the U.S. Army entered the disputed territory between the rivers, Mexico attacked and killed 11 American soldiers. In this address to Congress, President Polk roused war fever by claiming that American blood had been shed on American soil. Knowing that this land could also be considered Mexican soil, his opponents in the Whig party passed a resolution declaring that the war had been “unnecessarily and unconstitutionally begun by the President.” Unit 2: The Mexican American War Classroom Resources Resource 2: “Eight Dollars a Day” J. J. Hutchinson, “Eight Dollars a Day” (Boston: Oliver Ditson, 1848). Library of Congress. Unit 2: The Mexican American War Classroom Resources Resource 2: The Hutchinson Family was a popular singing group of four siblings: Abby, Asa, John, and Judson, with their brother Jesse writing the lyrics. They performed in the 1840s, singing songs about country life and politics. They supported abolition and temperance, and opposed the war with Mexico as little more than a strategy for spreading slavery. “Eight dollars a day” was then the pay of Congressmen, and a good deal more money than was made by most Americans or, as the song points out, by the soldiers fighting in the war. Here are the first and ninth verses: At Washington, full once a year do politicians throng Contriving there by various arts to make their sessions long And many a reason do they give why they’re obliged to stay, But the clearest reason yet adduced is Eight dollars a day. Then the cry of war runs through the land for Volunteers to go And fight in the war for slavery on the plains of Mexico Seven dollars a month and to be shot at that is the common soldier’s pay While those who send the poor fellows there get Eight dollars a day. Unit 2: The Mexican American War Classroom Resources Resource 3: Mapa de los Estados Unidos de Méjico John Disturnell, “Mapa de los Estados Unidos de Méjico,” 1847. Library of Congress. Unit 2: The Mexican American War Classroom Resources Resource 3: The language of this map is almost entirely Spanish, but it was created by an American map- maker and published in New York, probably around the time fighting ended in September of 1847. The map shows Texas within the area labeled “Estados Unidos,” or United States, with the Rio Grande as its southern border. The states of Mexico are shown in pastels. Seven issues of this map were created in 1847, one of which was used as the official map during negotiations of the Treaty of Guadalupe Hidalgo. Treaty of Guadalupe Hidalgo, Article V: The boundary line between the two Republics shall commence in the Gulf of Mexico, three leagues [about 9 miles] from land, opposite the mouth of the Rio Grande… from thence up the middle of that river… to the point where it strikes the southern boundary of New Mexico; thence, westwardly, along the whole southern boundary of New Mexico (which runs north of the town called Paso) to its western termination; thence, northward, along the western line of New Mexico, until it intersects the first branch of the river Gila…thence down the middle of the said branch and of the said river, until it empties into the Rio Colorado; thence across the Rio Colorado, following the division line between Upper and Lower California, to the Pacific Ocean. The southern and western limits of New Mexico, mentioned in the article, are those laid down in the map entitled “Map of the United Mexican States, as organized and defined by various acts of the Congress of said republic, and constructed according to the best authorities. Revised edition. Published at New York, in 1847, by J. Disturnell,” of which map a copy is added to this treaty, bearing the signatures and seals of the undersigned Plenipotentiaries. Unit 2: The Mexican American War Classroom Resources Resource 4: Drawing of a Mexican Man Abner Doubleday, Sketchbook and Scrapbook: Mexican War, 1846-47. New-York Historical Society. Gift of Mrs. Thomas H. Eddy. Unit 2: The Mexican American War Classroom Resources Resource 4: There is considerable doubt that Abner Doubleday really invented the game of baseball, but none about his role as a military man. Born near Cooperstown, New York, he was a year ahead of Ulysses S.
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