The Rosary is an important and traditional prayer recited by many Roman Catholics, combining prayer and meditation in a sequence of ten 'Hail Marys' called a decade. [1] (http://www.rosary-center.org/nrosary.htm) The name comes fron Italian Rosario, that means "crown of roses". A standard rosary involves the repetition of five decades of the Rosary. A complete Rosary involves the completion of twenty decades. While the Rosary was said by many Roman Catholics in the past, its use has declined since Vatican II.
Some national variations in terms of prayers used and structure occur as to the form of Rosary recited.
Eastern Christians also use similar strings of beads to pray, although among the Orthodox their use is mainly restricted to monks and bishops, not being common among laity or secular clergy. Many Eastern Christians use a prayer rope instead; its use is much more prevalent, and it is typically associated with the Jesus Prayer.
The Rosary is consecrated to the Immaculate Heart of the Virgin Mary.
According to tradition, in 1214, St. Dominic received the first Rosary from the Blessed Virgin, in the first of a series of apparitions, as a means of converting the Albigensians and other so-called "sinners". However, the historical record indicates that the Rosary predates St. Dominic's time by centuries (indeed, similar prayer beads are found in many religions, and some have been found dating back to the antiquity), and the story of it being received by St. Dominic appears to be an invention from long after St. Dominic's death.
In her supposed apparition at Fatima (1917), the Virgin Mary allegedly revealed that every time a Hail Mary is recited, is like a rose was offered Her, so a complete Rosary is like a crown of roses. (This idea of a Rosary being a crown predates Fatima by centuries, and was expressed on several occasions by medieveal Catholics.)
Traditionally, 15 decades used to be said in total, a total increased to 20 with the addition in 2002 of a fourth set of 'Mysteries.' Each decade traditionally corresponds to a mystery of Redemption, although the mysteries did not originate until the 15th or 16th centuries, and even then there was not universal agreement on what they were.
In a common form beads are true olive seeds; in past times there was an opinable commerce of Rosaries made with pretended olive seeds from the Garden of Gethsemane[?]. Beads are sometimes made with sacred relics (or believed).
See also: prayer, Blessed Virgin Mary. Legion of Mary[?].
Compare with: prayer rope
Table of contents 
The Nativity
The third of the Joyful Mysteries
The Rosary was traditionally 'dedicated' to one of three sets of 'mysteries' to be said in sequence, one per night; the Joyful Mysteries, Sorrowful Mysteries and the Glorious Mysteries. In an unprecedented break with tradition, Pope John Paul II in his encyclical Rosarium Virginis Mariae (October 2002) introduced a fourth set, called the Mysteries of the Light. Each set has within it five different themes to be meditated on, one for each decade of ten Hail Marys.
Joyful
Sorrowful

The Crucifixion of Jesus
The fifth of the Sorrowful Mysteries
Glorious
Light
Types of Rosaries One Frequently Used Form

The Resurrection of Jesus
The first of the Glorious Mysteries
A Regularly Used Alternative

The Coronation of the Blessed Virgin Mary in Heaven
The fifth of the Glorious Mysteries
linked into the Hail Holy Queen prayer
The Origins of the Rosary
Rosary Beads 
Our Lady of Lourdes
Catholic Image showing Mary
appearing at Lourdes with Rosary Beads
A Rosary Beads usually contains 50 beads in groups of ten (the decades), with an additional large bead in between each. Some beads have been known to have one hundred or one hundred and fifty are also known. These numbers were chosen to match the number of psalms, or a third or two-thirds of them. This was because in ancient times monks and clergy used to recite the entire psalter every day; the practice of saying one hundred and fifty Pater Noster's developed as an alternative for those who were illiterate or who could not afford a psalter. It was only in the Middle Ages, however, when prayer to Mary became common among Catholics, that the use of Ave Marias instead of Pater Noster's came about.
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