Hey, I have an FRQ prompt that goes:

Discuss the impact of territorial expansion on national unity between 1800 and 1850.

So basically I'm looking for important points to include in my essay. So far I have:

Stephen F. Austin and American empresarios in TX
Antonio Lopez de Santa Anna
The Alamo
Sam Houston
James K. Polk
John Tyler
John C. Calhoun
Henry Clay
John C. Fremont and the Bear Flag Republic
John L. O’Sullivan and manifest destiny
Zachary Taylor
Winfield Scott
Martin Van Buren and the Free Soil Party
Treaty of Guadaloupe Hidalgo
Wilmot Proviso
Squatter or popular sovereignty
Indian Removal Act, “Trail of Tears”
Missouri Compromise
Louisiana Purchase
Texas Revolution
Tecumseh and the prophet
Speculator and the Squatter
Slavery in western states
Mexican-American War
John Tyler and the annexation of Texas
Manifest Destiny

(Some things might be repeated in there^)

Not necessarily in that order, but yeah. Is there anything that I should take out/put in? Any help would be appreciated, thanks.