After the invasions of the Romans, there followed the Teutonic incursions and settlements, which were by the mediæval kingdoms, and the struggles between the Northerners and Southrons, but no regular boundary was recognized until 1532. For a millennium and a half, or from Roman times, this border land was a region given up to lawlessness, nor did anything approaching order seem possible until Christianity had been generally accepted. Faith transformed both society and the face of nature. By the twelfth century, churches, abbeys, and monasteries had made the rugged landscape smile in beauty, while softening somewhat the manners of the rude inhabitants. Yet even within times of written history, nine great battles and innumerable raids, of which several are notable in record, song, or ballad, took place in this region. These, for the most part, were either race struggles or contests for the supremacy of kings. In modern days, when “the border,” though no longer a legal term, holds its place in history and literature, it has been common to speak of the country “north of the Tweed” as meaning Scotland. Yet this river forms fewer than twenty miles of the recognized boundary, which in a straight line would be but seventy miles, but which, following natural features of river, hill burn, moor, arm of the sea, and imaginary lines, measures one hundred and eight miles. The ridge of the Cheviot Hills is the main feature of demarcation for about twenty-five miles. A tributary of the Esk prolongs the line, and the Sark and the Solway Firth complete the frontier which divides the two lands. The English counties of Northumberland and Cumberland are thus separated from the Scottish shires of Berwick, Roxburghe, and Dumfries. In former times, “the frontier shifted according to the surging tides of war and diplomacy.” Even to the eleventh century, the old Kingdom of Northumbria included part of what is now Scotland, up to the Firth of Forth and as far west as Stirling. In 1081, however, the Earl of Northumberland ceded the district which made the Tweed the southern boundary of the Kingdom of the Scots. Hence the honor of antiquity belonging to the Tweed as the eastern border-line! On the west, however, William the Conqueror wrenched Cumberland from the Scottish sceptre, and ever since it has remained in England.