Mary Help of Christians is a Catholic title of the Blessed Virgin Mary, based on a devotion now associated with a feast day of the General Roman Calendar on 24 May. John Chrysostom was the first to describe this title, in AD 345. In more recent times, Don Bosco and Vincent Pallotti propagated devotion under this title. It is associated with the defense of Christian Europe, North Africa and the Middle East from non-Christians during the Middle Ages.
