However, for the purposes of modern travelers to Rome, the Jesuits have had a more specific impact on the city and its history. During the first period of Jesuit development mentioned above, the period of the Catholic Church’s Counter Reformation, the then very young Jesuit order provided a leadership example of decisive action against the Protestant crisis, revitalizing the Catholic Church and halting the flight of ever more believers from the faith. The Jesuits achieved this by repackaging the message of the Church to observers in a more appealing fashion. Some of their most powerful practices were the use of religious art and architecture, both found in the new Jesuit churches, always the central point of local Jesuit activity.