I think Virginia had the highest population of slaves back then. If I am wrong Sorry.
They are a necessary for raiaing the standard of living - A
The league of nations was ineffective
July 20, 1304 – July 18/19, 1374), commonly anglicized as Petrarch
The Mexican-American War, waged between the United States and Mexico from 1846 to 1848, helped to fulfill America's "manifest destiny" to expand its territory across the entire North American continent, thus making the Manifest Destiny a result of the war.