Category
page 1430s in the Byzantine Empire
First Council of Ephesus
ecumenical council in Ephesus in June–July 431, convened by Emperor Theodosius II
Treaty of Margus
435 treaty between the Huns and the Roman Empire
Nestorian Schism
schism between the Christian churches of Sassanid Persia affiliated with Nestorius and churches that rejected him, arising out of a Christological dispute, caused by the Council of Ephesus (431)