What was “Manifest Destiny”? How did the policies of James K. Polk, 1845- 1849, realize the dreams of American expansionists in those years?

What was “Manifest Destiny”? How did the policies of James K. Polk, 1845- 1849, realize the dreams of American expansionists in those years?

What were the consequences of the Mexican-American War? Discuss the sectional crisis of 1850.

What were the elements of the compromise reached by the
north and the south that year?