The Council of Trent made sweeping reforms to the Catholic Church over 18 years, eliminating many abuses criticized in the Protestant Reformation. Convened by Pope Paul III at Trento, Italy—28 years after Martin Luther issued his 95 Theses—the council fixed the canon of the Old and New Testaments, set the number of sacraments at seven, defined the nature of original sin, and confirmed the doctrine of transubstantiation. How many years was it until the next ecumenical council? Discuss
Source: The Free Dictionary