Since the Eastern Orthodox Church accepts as dogma only the solemn teaching of seven Ecumenical Councils, this approval, though part of what the Encyclopædia Britannica called "the most vital statement of faith made in the Greek Church during the past thousand years", was not equivalent to a dogmatic definition. However, the Protestant scholar Philip Schaff wrote in his "Creeds of Christendom": "This Synod is the most important in the modern history of the Eastern Church, and may be compared to the Council of Trent. Both fixed the doctrinal status of the Churches they represent, and both condemned the evangelical doctrines of Protestantism ... the Romish doctrine of transubstantiation () is taught as strongly as words can make it."