Original sentence: He convened the first of the ecumenical councils at Nicea, where the church dogmatically defined the Trinity.In modern times, several Christian denominations intentionally follow what they believe to be early Christian practices, such as believer's baptism, Sabbath in Christianity, and Passover (Christian holiday) (see also Christian Torah-submission), in place of established Christian traditions.In the fourth century, Constantine converted to Christianity and legalized it, showing it personal favour.Major texts, such as the Didache (in second-millennium copies) and the Gospel of Thomas (in two manuscripts dated as early as about 200 and 340), have been rediscovered in the last 200 years.The next six ecumenical councils further defined the Trinity, affirmed Mary as the Mother of God, and anathematized various heresies.These Restorationist sects consider themselves to be restoring the authentic practices of the early Christian era, before what they call the "Great Apostasy.They declared heretical some early Christian writings, such as certain tenets of Origen's
Edited sentence: He convened the first of seven ecumenical councils at Nicea, where the church dogmatically defined the Trinity.In modern times, several Christian denominations intentionally emulate early Christian practices in place of church traditions, such as believer's baptism, Sabbath in Christianity, and Passover (Christian holiday), see also Christian Torah-submission.In the fourth century, Constantine converted to Christianity and established it as the favored religion of the empire.Major texts, such as the Didache and the Gospel of Thomas, have been discovered in the last 200 years.Restorationist sects consider themselves to be restoring the authentic practices of the early Christian era, before the so-called "Great Apostasy.Some early Christian writing, such as certain tenets of Origen's, was declared heretical.The next six ecumenical councils further defined the Trinity, affirmed Mary as the Mother of God, anathematized various heresies, and forbade religious statuary