The Council of Trent managed to pass a number of reforms and clarify a number of the doctrines that had been questioned by Luther during the Great Reformation. The council was held in several small meetings from 1545 to 1563. During this time very few of the leaders of the church came to the Council despite there being 700 bishops that could have attended from day one and in the end only a total of 270 did so.
During the first meeting of the council, the Nicene Creed was accepted as the basis of the Catholic faith, the Old and New Testaments were fixed in its canon and the number of sacraments was set at seven. Despite the low number of attendees, the council judged against Luther's doctrine of justification by faith alone.