What was the final act that solidified the schism?

What was the final act that solidified the schism?

A public debate

Excommunication of leaders

A council meeting

Signing of a treaty

1 answer

The final act that solidified the schism between the Eastern Orthodox Church and the Roman Catholic Church is often considered to be the excommunication of leaders. This occurred in 1054 during the events known as the East-West Schism, when the papal legate and the Patriarch of Constantinople excommunicated each other, marking a definitive break between the two branches of Christianity.