Northern England Mamucium (Manchester) and Cataractonium (Catterick). Britannia Inferior extended as far north as Hadrian's Wall, which was the northernmost border of the Roman Empire. Although the Romans invaded modern-day Northumberland and part of Scotland beyond it, they never succeeded in conquering the reaches of Britain beyond the River Tyne. After the end of Roman rule in Britain and the arrival of the Angles, Yr Hen Ogledd (the "Old North") was divided into rival kingdoms, Bernicia, Deira, Rheged and Elmet. Bernicia covered lands north of the Tees, Deira corresponded roughly to the eastern half of modern-day Yorkshire, Rheged to Cumbria, and Elmet
Scotland during the Roman Empire fortification built across the width of what is now northern England. The wall was 80 Roman miles (73.5 statute miles or 117 kilometres) long, its width and height dependent on the construction materials which were available nearby. East of the River Irthing the wall was made from squared stone and measured 3 metres (9.7 ft) wide and 5–6 metres (16–20 ft) high, while west of the river the wall was originally made from turf and measured 6 metres (20 ft) wide and 3.5 metres (11.5 ft) high; it was subsequently rebuilt in stone. The wall was augmented by various ditches,