Roman Catholics have prayed the Rosary time out of mind (and when the Church has always followed a given rite there is a strong prima facie case that the rite has authority).
The institution of the devotion is often credited to St. Dominic - though this creditation is not a matter of dogma.
The current authority of the Rosary as a valid devotion is confirmed by a set of encyclicals addressing the matter begun by Pope Leo XIII begining in 1883.
Easy pray the Rosary and tell God you are offering it up to someone else.
The Apostles' Creed is prayed in the Rosary. It is the first prayer in the Rosary.
Yes.
Some "High Church" Episcopal churches do pray the Holy Rosary. For example, Italian churches that come from Rome to the Episcopal faith. However, the majority of Episcopal Churches do not pray the rosary, and most parishioners do not even own a rosary. They know what the rosary is, but have no attachment to performing the prayers.
St. Dominic de Guzman encouraged people to pray the rosary.
The rosary is primarily a Catholic practice, but it is also used in some other Christian denominations such as Anglicanism, Lutheranism, and Eastern Orthodoxy, albeit in modified forms. It is not commonly practiced in other world religions outside of Christianity.
The Roman Catholic Church and the Orthodox Church are the two main religious institutions that pray the rosary, though other Christian denominations and even other religions pray the rosary.
Apostles Creed
The Apostle's Creed
No, praying the rosary before or after Mass is a very praiseworthy practice.
Roman Catholic AnswerThe link below has the prayers of the Rosary in Latin and in English.
The Rosary begins with the the sign of the Cross, The Aposle's Creed is prayed, holding the crucifix. for more information on how to pray the Rosary see Link