Based on the three shepherds who appeared in Fatima, Portugal during World War I in 1917. They appear to have seen an apparition of the Blessed Virgin Mary during the Marian apparitions. The Blessed Virgin Mary told the children three things that they were told to keep hidden, and this became known as the Fatima code. Our Lady of Fatima is a Catholic title for the Blessed Virgin Mary, according to legend. The feast of Our Lady of Fatima was officially celebrated in the year 1930.