Our Lady of Fatima refers to a title given to the Virgin Mary based on her reported appearances to three shepherd children in Fatima, Portugal in 1917. The children, Lucia dos Santos, Francisco Marto, and Jacinta Marto, claimed to have seen Mary multiple times, where she shared messages of prayer, penance, and peace. The events at Fatima culminated in a miraculous event known as the Miracle of the Sun, witnessed by thousands on October 13, 1917. This phenomenon is considered a significant moment in Catholic history, leading to the canonization of Francisco and Jacinta in 2017 and the establishment of the Sanctuary of Our Lady of Fatima.