The month of October each year is dedicated to the Rosary. This is primarily due to the fact that the liturgical feast of Our Lady of the Rosary is celebrated on October 7 in the Catholic Church.
Also, in 1917, three Portuguese children were visited by the Blessed Virgin Mary in Fatima, Portugal, over a period of six months. The final visit was on October 13, when about 70,000 people witnessed the dancing sun, performed by Our Lady.
As a result, many people were converted, while non-practicing Catholics returned to the faith. Hence, praying in a public arena has the potential of converting people and making Catholics stronger in their belief.