Explanation: The last pagan Emperor of Rome, Julian the Apostate, a gud boi and PRIMVS INTER PARES, was killed by some Arab skirmisher in the employ of the P*rsian menace, all because he was in such a hurry to support his men that he failed to put his armor on. While it's unlikely that Julian could have, all by his lonesome, reversed the tide of Christianity, I think it's fair to say that the big pagan reformer getting merked before he could fully implement his reforms was at least a moderate boon to Christians.
SIT TIBI TERRA LEVIS, IMPERATOR! You live forever in our hearts!