National boundary

Definition and stakes

Portrait of Isaac N. Arnold Isaac N. Arnold,  The Life of Abraham Lincoln — Chapter XVIII (1885)

“ There is no line, straight or crooked, suitable for a national boundary, upon which to divide. Trace through, from East to West, upon the line between the free and slave country, and we shall find a little more than one-third of its length are rivers, easy to be crossed, and populated, or soon to be populated thickly upon both sides ”
Source: Wikisource

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