Why is "Christianity in Medieval Scotland" trending?

Wikipedia Overview

Christianity was probably introduced to what is now Lowland Scotland by Roman soldiers stationed in the north of the province of Britannia. After the collapse of Roman authority in the fifth century, Christianity is presumed to have survived among the British enclaves in the south of what is now Scotland, but retreated as the pagan Anglo-Saxons advanced. Scotland was largely converted by Irish missions associated with figures such as St Columba, from the fifth to the seventh centuries. These missions founded monastic institutions and collegiate churches that served large areas. Scholars have identified a distinctive form of Celtic Christianity, in which abbots were more significant than bishops, attitudes to clerical celibacy were more relaxed and there were significant differences in practice with Roman Christianity, particularly the form of tonsure and the method of calculating Easter, although most of these issues had been resolved by the mid-seventh century. After the reconversion of Scandinavian Scotland in the tenth century, Christianity under papal authority was the dominant religion of the kingdom.