Question

define james k. polk
a rapid movement of people to a newly discovered goldfield. the first major gold rush, to california in 1848 - 49, was followed by others in the us, australia (1851 - 53), south africa (1884), and canada (klondike, 1897 - 98)
the 11th president of the united states, serving from 1845 to 1849. he previously was the 13th speaker of the house of representatives and ninth governor of tennessee
an enslaved african - american man who, along with his wife, harriet, unsuccessfully sued for freedom for themselves and their two daughters in the dred scott v. sandford case of 1857, popularly known as the \dred scott decision\
officially titled the treaty of peace, friendship, limits and settlement between the united states of america and the mexican republic, is the peace treaty that was signed on 2 february 1848, in the villa de guadalupe hidalgo (now a neighborhood of mexico city) between the united states and mexico that ended the mexican - american war (1846 - 1848)

Explanation:

James K. Polk was the 11th president of the United States, serving from 1845 - 1849. He had prior political roles as the 13th Speaker of the House of Representatives and ninth governor of Tennessee.

Answer:

the 11th president of the United States, serving from 1845 to 1849. He previously was the 13th Speaker of the House of Representatives and ninth governor of Tennessee