Definition of Roman Britain in English:

• Britain during the period AD 43–410, when most of Britain was part of the Roman Empire.

  罗马帝国统治时期的不列颠（公元43-410年间的不列颠，当时不列颠的大部分地区属于罗马帝国统治）

The frontier of the Roman province of Britain was eventually established at Hadrian's Wall; the more northerly Antonine Wall was breached and abandoned (c.181). Roman settlers and traders built villas, and Roman towns including London (Londinium), York (Eboracum), Lincoln (Lindum Colonia), St Albans (Verulamium), and Colchester (Camulodunum) were established or developed