Between 43 AD and ~128, the Roman empire repeatedly attempted to extend their northern border into Scotland After failing to invade a decision was made in 122 to build a "defensive fortification in the Roman province of Britannia" to keep the Scottish people out… Named "Hadrian's Wall" after the Roman Emperor Hadrian (also called the "Roman Wall", "Picts' Wall" or (Latin) "Vallum Hadriani"), it still runs westerly across northern Britannia from the east of Britain on the banks of the River Tyne (near the North Sea) to the Solway Firth on the Irish Sea… The wall is south of the Scottish border, ranging from less than a mile to 68 miles See PreRoman Scotland and Scotland-Middleages (Part of Anglo-Saxon Britain) for more info [ https://en.wikipedia.org/wiki/Hadrian%27s_Wall#Construction ]