Where did the rosary originate?

I wonder why we have the rosary. I used to pray the rosary, but after reading some verses ( I forgot the verse that I have read) that God doesn’t want repetitious prayer because He already knows what you are asking of HIM.

These links should give you the answers that you need. If you have any further questions or concerns that are not answered by this, please contact Catholic Answers directly.Recommended Reading:
Is repetitious prayer bad?**
]* Vain Repetition**
]* The Rosary**
*]**A Brief History of the Rosary **from This Rock

DISCLAIMER: The views and opinions expressed in these forums do not necessarily reflect those of Catholic Answers. For official apologetics resources please visit www.catholic.com.