From Catholic Encyclopedia-
Feast of the Holy Rosary:
Apart from the signal defeat of the Albigensian heretics at the battle of Muret in 1213 which legend has attributed to the recitation of the Rosary by St. Dominic, it is believed that Heaven has on many occasions rewarded the faith of those who had recourse to this devotion in times of special danger. More particularly, the naval victory of Lepanto gained by Don John of Austria over the Turkish fleet on the first Sunday of October in 1571 responded wonderfully to the processions made at Rome on that same day by the members of the Rosary confraternity. St. Pius V thereupon ordered that a commemoration of the Rosary should be made upon that day, and at the request of the Dominican Order Gregory XIII in 1573 allowed this feast to be kept in all churches which possessed an altar dedicated to the Holy Rosary. In 1671 the observance of this festival was extended by Clement X to the whole of Spain, and somewhat later Clement XI after the important victory over the Turks gained by Prince Eugene on 6 August, 1716 (the feast of our Lady of the Snows), at Peterwardein in Hungary, commanded the feast of the Rosary to be celebrated by the universal Church. A set of “proper” lessons in the second nocturn were conceded by Benedict XIII. Leo XIII has since raised the feast to the rank of a double of the second class and has added to the Litany of Loreto the invocation “Queen of the Most Holy Rosary“. On this feast, in every church in which the Rosary confraternity has been duly erected, a plenary indulgence toties quoties is granted upon certain conditions to all who visit therein the Rosary chapel or statue of Our Lady. This has been called the “Portiuncula” of the Rosary.
Also from Women for Faith and Family:
Feast of the Holy Rosary
The feast of the Holy Rosary was established by Saint Pius V on the anniversary of the naval victory won by the Christian fleet at Lepanto, October 7, 1571. The victory was attributed to the help of the holy Mother of God whose aid was invoked through praying the Rosary.
The celebration of this day invites all to mediate upon the mysteries of Christ, following the example of the Blessed Virgin Mary who was so singularly associated with the incarnation, passion and glorious resurrection of the Son of God. From the Christian Prayer(Liturgy of the Hours)
Lord, fill our hearts with your love,
and as you revealed to us by an angel the coming of your Son as man,
so lead us through his suffering and death to the glory of his resurrection,
who lives and reigns with you and the Holy Spirit, one God, for ever and ever. Amen.
First Reading: Acts of the Apostles 1:12-14
Then they returned to Jerusalem from the mount called Olivet, which is near Jerusalem, a sabbath day’s journey away; and when they had entered, they went up to the upper room, where they were staying, Peter and John and James and Andrew, Philip and Thomas, Bartholomew and Matthew, James the son of Alphaeus and Simon the Zealot and Judas the son of James. All these with one accord devoted themselves to prayer, together with the women and Mary the mother of Jesus, and with his brothers.
Gospel Reading: Luke 1:26-38
In the sixth month the angel Gabriel was sent from God to a city of Galilee named Nazareth, to a virgin betrothed to a man whose name was Joseph, of the house of David; and the virgin’s name was Mary. And he came to her and said, “Hail, full of grace, the Lord is with you!” But she was greatly troubled at the saying, and considered in her mind what sort of greeting this might be. And the angel said to her, “Do not be afraid, Mary, for you have found favor with God. And behold, you will conceive in your womb and bear a son, and you shall call his name Jesus. He will be great, and will be called the Son of the Most High; and the Lord God will give to him the throne of his father David, and he will reign over the house of Jacob for ever; and of his kingdom there will be no end.” And Mary said to the angel, “How shall this be, since I have no husband?” And the angel said to her, “The Holy Spirit will come upon you, and the power of the Most High will overshadow you; therefore the child to be born will be called holy, the Son of God.
And behold, your kinswoman Elizabeth in her old age has also conceived a son; and this is the sixth month with her who was called barren. For with God nothing will be impossible.” And Mary said, “Behold, I am the handmaid of the Lord; let it be to me according to your word.” And the angel departed from her.
Pope John Paul II asks us to pray the Rosary(October 16, 2002), Pope John Paul II issued Rosarium Virginis Mariae – Apostolic Letter on Rosary of the Virgin Mary. He declared October 2002 October 2003 The Year of the Rosary, and added Mysteries of Light that focus on events of Christ’s ministry.
On September 30, 2001, after the morning Mass opening the Synod of Bishops, Pope John Paul II asked people to pray the Rosary. Here is his message:
“October is the month in which Mary Most Holy, Queen of the Holy Rosary, is venerated. Within the current international context, I invite all — individuals, families, communities — to pray this Marian prayer, possibly every day, for peace, so that the world can be preserved from the wicked scourge of terrorism.
“The terrible tragedy of September 11th will be remembered as a dark day in the history of humanity. In the face of this, the Church tries to be faithful to her prophetic charism and remind all men about their duty to build a future of peace for the human family. Certainly, peace is not separated from justice, but it must be nourished by mercy and love.
“We cannot forget that Jews, Christians and Muslims adore God as the only God. The three religions, therefore, have the vocation of unity and peace. May God allow the Church’s faithful to be agents of peace, in the front line of the search for justice and the prohibition of violence.
“May the Virgin Mary, Queen of Peace, intercede for all humanity, so that hate and death never have the last word!”
On September 29, 2002, Pope John Paul II ask that we pray the Rosary for Peace:
JOHN PAUL II
Sunday, 29 June 2002
Dear Brothers and Sisters,
1. We are already on the threshold of the month of October, which, with the liturgical memorial of Our Lady of the Rosary, inspires us to rediscover this traditional prayer, so simple yet so profound.
The Rosary is a way of contemplating the face of Christ seeing him – we may say – with the eyes of Mary. For this reason, it is a prayer that drawing upon the core of the Gospel is in full accord with the inspiration of the Second Vatican Council and very much in keeping with the direction I gave in the Apostolic Letter Novo Millennio ineunte: the Church has to launch out “into the deep” in the new millennium beginning with the contemplation of the face of Christ.
Therefore, I wish to suggest the recitation of the Rosary to individuals, families and Christian communities. To give force to this invitation, I am preparing a document which will help to rediscover the beauty and depth of this prayer.
2. I wish once again to entrust the great cause of peace to the praying of the Rosary. We are facing an international situation that is full of tensions, at times threatening to explode. In some parts of the world, where the confrontation is harsher – I think particularly of the suffering land of Christ – we can realize that, even though they are necessary, political efforts are worth little if one remains exacerbated in his mind and no one cares to demonstrate a new disposition of heart in the hope of reviving the struggle and effort of dialogue.
Who but God alone can infuse such sentiments? It is more necessary than ever that from every part of the earth prayer for peace be made to Him. In this perspective, the Rosary turns out to be the form of prayer most needed. It builds peace because, while it appeals to the grace of God, it sows in the one praying it the seed of good from which we can expect the fruit of justice and solidarity for personal and community life.
I am thinking of nations and also of families. How much peace would flow into family relationships if the family would begin again to pray the Rosary.
John Paul II greeted the pilgrims in French, English, German, Spanish, Portuguese, Polish and Italian.
To the English-speaking
3. I extend a warm greeting to the English-speaking pilgrims and visitors, and invite you to make the month of October a time of special attention to the recitation of the Rosary, the great prayer of intercession to Mary. Upon you and your families I invoke the joy and peace of the Lord.
4. The prayer we are about to pray begins by recalling the annunciation of the Archangel Gabriel to the Virgin Mary. In fact, today is the feast of the holy Archangels Michael, Gabriel and Raphael. May these powerful ministers of God obtain for us the grace to correspond always with generous love to his will.
Dear Friends, this is the last Angelus of the vacation period. With affection, I greet once again the townsfolk of Castel Gandolfo: Goodbye until next year. Next Sunday, 6 October, God willing, we shall be in St Peter’s Square.