And if so, has there been any analysis of these inscriptions to help us better understand how quickly different parts of the Roman Empire were Christianized?

I’ve been fascinated by this era (4th to 6th century), especially in relation to the Christianization of the Roman Empire. It seems notoriously difficult to estimate the growth of Christianity, or even find any guesses as to when Christians became the majority. I’m basically trying to find any concrete evidence which might give me a clearer picture.