Twentieth Sunday in Ordinary Time • Year B

Changes and adaptations to the Mass came to a screeching halt with the beginning of the Protestant Reformation in 1517. The Reformation was more a battle over theology rather than liturgy; theology certainly impacts liturgy, but the main battles were about the role of Scripture and Tradition, as well as the primacy of the pope. The theological battles were complicated by political ones as kings and princes saw an opportunity to undercut the authority of the Church.