It may not be obvious how dedicating the month of October to the Holy Rosary fits into this pattern. But the rosary—and, more specifically, Our Lady of the Rosary—is credited with victory in a number of the battles that those feasts celebrate. Chief among these is the Battle of Lepanto (October 7, 1571), in which a Christian fleet defeated a superior Ottoman Muslim fleet and stopped the westward expansion of Islam in the Mediterranean.
In honor of the victory, Pope Pius V instituted the Feast of Our Lady of Victory, which is still celebrated today as the Feast of Our Lady of the Rosary (October 7). And, in 1883, when Pope Leo XIII officially dedicated the month of October to the Holy Rosary, he made reference to the battle and the feast.
The best way to celebrate the Month of the Holy Rosary is, of course, to pray the rosary daily; but we can also add some of the other prayers below to our daily prayers this month.