*REVIEW OF POPE JOHN XXIII ENCYCLICAL "GRATA RECORDATIO (1959)" ON THE HOLY ROSARY* Grata Recordatio is an encyclical issued by Pope John XXIII on September 26, 1959. Its title, which translates to "A Pleasant Recollection," reflects the Pope's nostalgic remembrance of the Rosary's spiritual and pastoral significance, particularly in his younger days. The document emphasizes the power of the Rosary as a prayer for world peace and calls for the faithful to renew their devotion to this practice. While it is a relatively brief document compared to other papal writings, Grata Recordatio is significant in its reaffirmation of the Rosary's central place in Catholic life and its broader call for peace and social justice during a time of great global tension. *Historical and Contextual Background* At the time of its release, the world was caught in the midst of the Cold War, with ongoing concerns about nuclear arms, ideological conflicts between the East and th