Humanities › History & Culture James Polk Fast Facts Eleventh President of the United States Share Flipboard Email Print President James K. Polk. President during the Mexican American War and era of Manifest Destiny. Hulton Archive / Stringer / Getty Images History & Culture American History U.S. Presidents Basics Important Historical Figures Key Events Native American History American Revolution America Moves Westward The Gilded Age Crimes & Disasters The Most Important Inventions of the Industrial Revolution African American History African History Ancient History and Culture Asian History European History Genealogy Inventions Latin American History Medieval & Renaissance History Military History The 20th Century Women's History View More By Martin Kelly Martin Kelly History Expert M.A., History, University of Florida B.A., History, University of Florida Martin Kelly, M.A., is a history teacher and curriculum developer. He is the author of "The Everything American Presidents Book" and "Colonial Life: Government." Learn about our Editorial Process Updated on March 08, 2017 James K. Polk (1795-1849) served as America's eleventh president. He was known as the 'dark horse' as he was not expected to beat his opponent, Henry Clay. He served as president during a period of 'manifest destiny', overseeing the Mexican War and the entry of Texas as a state. ere is a quick list of fast facts for James Polk. For more in depth information, you can also read the James Polk Biography. Birth: November 2, 1795 Death: June 15, 1849 Term of Office: March 4, 1845-March 3, 1849 Number of Terms Elected: 1 Term First Lady: Sarah Childress James Polk Quote: "No President who performs his duties faithfully and conscientiously can have any leisure."Additional James Polk Quotes Major Events While in Office: Oregon Treaty (1846) Mexican War (1846-1848) States Entering Union While in Office: Texas (1845) Iowa (1846) Wisconsin (1848) Significance: James K. Polk increased the size of the US more than any other president other that Thomas Jefferson due to the acquisition of New Mexico and California after the Mexican-American War. He also completed a treaty with England that resulted in the US gaining the Oregon Territory. He was an effective chief executive during the Mexican-American War. Historians consider him to be the best one-term president. Related James Polk Resources: These additional resources on James Polk can provide you with further information about the president and his times. James Polk BiographyTake a more in depth look at the Eleventh president of the United States through this biography. You'll learn about his childhood, family, early career, and the major events of his administration. Chart of Presidents and Vice PresidentsThis informative chart gives quick reference information on the Presidents, Vice-Presidents, their terms of office and their political parties. Other Presidential Fast Facts: John Tyler Zachary Taylor List of American Presidents Cite this Article Format mla apa chicago Your Citation Kelly, Martin. "James Polk Fast Facts." ThoughtCo, Apr. 5, 2023, thoughtco.com/james-polk-fast-facts-104736. Kelly, Martin. (2023, April 5). James Polk Fast Facts. Retrieved from https://www.thoughtco.com/james-polk-fast-facts-104736 Kelly, Martin. "James Polk Fast Facts." ThoughtCo. https://www.thoughtco.com/james-polk-fast-facts-104736 (accessed May 29, 2023). copy citation Featured Video