The territory thus ceded, north and west of the Ohio River, constituted the public domain. Its boundaries were somewhat indefinite, but subsequent surveys confirmed the rough estimate that it contained from one to two hundred millions of acres. It was supposed to be worth, on the average, about a dollar an acre, which would make this property an asset sufficient to meet the debts of the war and to leave a balance for the running expenses of the Government. It thereby became one of the strong bonds holding the Union together.

"Land!" was the first cry of the storm-tossed mariners of Columbus. For three centuries the leading fact of American history has been that soon after 1600 a body of Europeans, mostly Englishmen, settled on the edge of the greatest piece of unoccupied agricultural land in the temperate zone, and proceeded to subdue it to the uses of man. For three centuries the chief task of American mankind has been to go up westward against the land and to possess it. Our wars, our independence, our state building, our political democracy, our plasticity with respect to immigration, our mobility of thought, our ardor of initiative, our mildness and our prosperity, all are but incidents or products of this prime historical fact.*