History of Christianity in Scotland
The history of Christianity in Scotland includes all aspects of the Christianity in the region that is now Scotland from its introduction up to the present day. Christianity was first introduced to what is now southern Scotland during the Roman occupation of Britain, and is often said to have been spread by missionaries from Ireland in the fifth century and is much associated with St Ninian, St Kentigern (perhaps better known as St Mungo) and St Columba, though “they first appear in places where churches had already been established”.
Source: Wikipedia — History of Christianity in Scotland (CC BY-SA 4.0)