Event Factoid: Because of the persecution of John, Thomas and his
followers departed from Armenia. Travelling to the district of
Claudias, Thomas build two monasteries on a mountain overlooking
the Euphrates.
Sources:
E. W Brooks, trans.,Lives of the Eastern Saints I,Patrologia Orientalis 17.1 (1923), https://archive.org/stream/patrologiaorient17pariuoft#page/n7/mode/2up, p: 296.