 A Romano-Briton, Patricius, later known as Saint Patrick, brought Christianity to Ireland and, following the fall of the Roman Empire, missionaries from Ireland re-introduced Christianity to Britain.The expansion of Gaelic culture into what became known as Scotland (after the Latin "Scoti", meaning Gaels) brought close political and familial ties between people in Ireland and people in Great Britain, lasting from the early Middle Ages to the 17th century, including a common Gaelic language spoken on both islands.Norse-Gaels in the Kingdom of Dublin and Norman invasion of Ireland added religious, political, economic and social ties between Northumbria and Wales with Leinster in the Pale, the Isle of Man and Galloway, including Hiberno-English.