Note 8
To 'General Observations on the Fall of the Roman Empire In The West'
From Gibbon's "Decline & Fall"

America now contains about six millions of European blood and descent; and their numbers, at least in the North, are continually increasing. Whatever may be the changes of their political situation, they must preserve the manners of Europe; and we may reflect with some pleasure that the English language will probably be diffused over an immense and populous continent.