Legend has it that Glastonbury was the birthplace of Christianity in the British Isles.

An excerpt from the article 16 facts about Glastonbury

When the first Christians arrived there, Glastonbury was almost an island surrounded by marshes. The first monks arrived there in 705 and founded an abbey. Only traces of simple cottages have survived from this period, and later, over the centuries, brick buildings were also built, although most of them only left the outlines of their foundations. Only the main church from the 13th and 14th centuries has been better preserved.