The event that marks the beginning of the Counter-Reformation is the Council of Trent. It was a series of meetings held between 1545 and 1563 by the Catholic Church in response to the Protestant Reformation. The Council of Trent aimed to address the criticisms and challenges presented by the Protestant movement and to reaffirm Catholic teachings and practices. It resulted in important reforms within the Catholic Church and played a significant role in shaping the direction of Catholicism in the centuries that followed.
