Original sentence: A major point of division as the Church was being formalized was the debate between Arianism and Trinitarianism which occupied the Church during the fourth century.After various Church councils (Nicaea, Rimini, Seleucia, Constantinople), the matter was effectively settled by the pro-Trinitarian Emperor Theodosius I who made Christianity the state religion (some Germanic tribes, though, remained Arian well into the Middle Ages)
Edited sentence: A few emperors (Constantius II, Julian II) would temporarily revive the issue but to little long-term effect (some Germanic tribes, though, remained Arian well into the Middle Ages).A major point of division as the Church was being formalized was the division between Arianism and Trinitarianism.Within the Empire this issue was (officially) settled in favor of Trinitarianism by the Council of Nicea