(July 15, 2015 at 8:34 pm)Catholic_Lady Wrote:(July 15, 2015 at 8:31 pm)Minimalist Wrote: You'll have to define what you mean by xtianity.
The basic belief that the God of Abraham made Himself man, this Man was named Jesus, He performed miracles, was crucified to save humanity, and rose from the dead.
Then the answer to your original question is, at swordpoint, from the late 4th century on.