4th century

The  was a time of great change for Christianity. After centuries of squabbling over the canonicity of the Bible, leaders of the Christian Church from all over the the Middle East, Africa and Europe met at the Council of Nicaea to finally settle how the text of the Bible should read. The Fifth Doctor, Peri and Erimem were on hand at the conference, held in 325. (BFA: The Council of Nicaea) Also, the Second Doctor likely befriended Saint Nicholas in the early part of the century, (ST: Saint Nicholas's Bones) and the Eighth Doctor and Charley stopped a Nimon invasion of Roman Britain. (BFA: Seasons of Fear)