Council of Trent
(1545 – 63) 19th ecumenical council of the Roman Catholic church, which made sweeping reforms and laid down dogma clarifying nearly all doctrines contested by the Protestants. Convened by Pope
Paul III at Trento in northern Italy, it served to revitalize
Roman Catholicism in many parts of Europe. In its first period (1545 – 47) it accepted the
Nicene Creed as the basis of Catholic faith, fixed the canon of the
Old and
New Testaments, set the number of
sacraments at seven, and defined the nature and consequences of
original sin; it also ruled against
Martin Luther's doctrine of
justification by faith. In its second period (1551 – 52) it confirmed the doctrine of
transubstantiation and issued decrees on episcopal jurisdiction and clerical discipline. In the final period (1562 – 63) it defined the
mass as a true sacrifice and issued statements on several other doctrinal issues. By the end of the 16th century, many of the abuses that had motivated the Protestant
Reformation had disappeared, and the church had reclaimed many of its European followers.
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