Early converts to Christianity were mainly from what social class

The triumph of Christianity over the pagan religions of ancient Rome led ... that was not only religious, but also social, political and cultural. ... These were lower-class, uneducated day laborers from a remote corner of the Roman Empire. ... But the key point is that the gods were principally active

Explanation:

The history of Christianity concerns the Christian religion, Christendom, and the Church with its various denominations, from the 1st century to the present. Christianity originated with the ministry of Jesus in the 1st century Roman province of Judea.

it increase by 12% a year from 1812-1820