Joint Resolution of Congress for the Annexation of Texas

(1845)

On March 1, 1845, John Tyler, the outgoing U.S. president, signed into law the Joint Resolution of Congress for the Annexation of Texas, authorizing the admission of the Republic of Texas to the United States as a state. On December 29, 1845, the new president, James Polk, signed into law the act of Congress accepting the constitution of the State of Texas and bringing Texas into the Union. Polk's signature completed a process begun nine years earlier, when Texas won its independence from Mexico at the battle of San Jacinto and offered itself to be annexed to the United States.

The annexation of Texas involved far more than the addition of another state to the rapidly growing United States. It unleashed forces that radically transformed the United States: the country's acquisition of additional territory, its emergence as the continental power, and increasing clashes over slavery that culminated in the early 1860s with secession and civil war. Texas's annexation also was...

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John Tyler (Library of Congress)

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