Event Factoid: Simeon
travelled far and wide to preach against the followers of Theodore , Nestorius ,
Mani ,
Bar Daisan ,
and Marcion .
He travelled from Jerusalem to Illyricum and
Persia and
Constantinople to spread the Christian faith.
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: 137-139.