The four-day program which ran from August 19th to the 22nd, would include sessions, meetings, and art displays. The keystone event was Archbishop Krol’s opening Mass, which featured a simple altar facing the congregation. Although not the first Mass to be celebrated facing the congregation in the United States, it was still an unusual sight. While the Mass was still celebrated in Latin, all the lectures and discussions focused on how the Mass of the future would look. The 1963 Liturgical Week proved to be the most successful up to that time with over 20,000 people attending the Masses and sessions, breaking the previous year’s record of 5,000 people.