The feast day of Our Lady of the Rosary was instituted by St. Pius V in commemoration of the victory of the Battle of Lepanto on October 7, 1571 against the Turks who were threatening Europe. In 1716, the feast was extended to the entire Church in thanksgiving for the defeat of the Muslim Crescent in Hungary. The devotion of the rosary was revealed to St. Dominic by Our Lady. It was born, therefore, in a private revelation. And we know that such revelations are abhorred by the enemies of the Church – internal and external. Although it came from a private revelation, the praying of the Rosary was extended to the entire Catholic Church, and was considered by St. Louis Grignion de Montfort as the characteristic devotion of predestined souls.