In 1917, Our Lady appeared to three Portuguese children, and outlined a plan to obtain world peace. One aspect of the plan was the daily recitation of the Holy Rosary. The Rosary has a long history in Catholicism. There are many places on the internet that teach the prayers of the Rosary (see one link, below). Our Lady at Fatima, Portugal encouraged the daily recitation of the Rosary on numerous occasions:
“Pray the Rosary every day, in order to obtain peace for the world, and the end of the war.” May 13, 1917
“I wish you to come here on the 13th of next month, to pray the Rosary each day.” June 13, 1917
“I want you to come here on the 13th of next month, and to continue praying the Rosary every day in honor of Our Lady of the Rosary, in order to obtain peace for the world and the end of the war, because only She can help you.” July 13, 1917
“I want you to continue praying the Rosary every day.” August 19, 1917
“Continue to say the Rosary to obtain the end of the war.” September 13, 1917
“I am Our Lady of the Rosary. Continue to say the Rosary every day.” October 13, 1917
“You at least try to console Me and announce in My name that I promise to assist at the moment of death, with all the graces necessary for salvation, all those who, on the First Saturday of five consecutive months shall confess, receive Holy Communion, recite five decades of the Rosary, and keep Me company for fifteen minutes while meditating on the fifteen mysteries of the Rosary, with the intention of making Reparation to Me.” December 10, 1925 to Sister Lucy at Pontevedra
Link to a brief history of the Rosary and how to pray it:
https://www.fisheaters.com/rosary.html