The river has two sources the source of the North Branch is at the Fairfax Stone located at the junction of Grant Tucker and Preston counties in West Virginia the source of the South Branch is located near Hightown in northern Highland County Virginia the river's two branches converge just east of Green Spring in Hampshire County West Virginia to form the Potomac As it flows from its headwaters down to the Chesapeake Bay the Potomac traverses five geological provinces: the Appalachian Plateau the Ridge and Valley the Blue Ridge the Piedmont Plateau and the Atlantic coastal plain. The most valuable crop that could be grown on a plantation in that climate was cotton That crop was labor-intensive and the least-costly laborers were slaves Demand for slaves exceeded the supply in the southwest; therefore slaves never cheap if they were productive went for a higher price as portrayed in Uncle Tom's Cabin (the "original" cabin was in Maryland) "selling South" was greatly feared a recently (2018) publicized example of the practice of "selling South" is the 1838 sale by Jesuits of 272 slaves from Maryland to plantations in Louisiana to benefit Georgetown University which "owes its existence" to this transaction. . 3.1 Architecture Nullification Crisis Changes in a nation's political regime sometimes result in the designation of a new capital Newly-independent Kazakhstan moved its capital to the existing city of Astana after the collapse of the Soviet Union Naypyidaw was founded in Burma's interior as the former capital Rangoon was claimed to be too overcrowded, 8.4 Political legacy Secession and inauguration Washington D.C. Business Directory. !
In 1846 after Polk ordered General Taylor's troops into the disputed territory Mexican forces attacked an American Army outpost ("Thornton Affair") in the occupied territory killing 12 U.S soldiers and capturing 52 These same Mexican troops later laid siege to an American fort along the Rio Grande. Polk cited this attack as an invasion of U.S territory and requested that the Congress declare war; .