I guess not but there's a religious celebration on May 13 in a city called Fatima in the country of Portugal. This date is linked to an alleged apparition of the Virgin Mary to three shepherd children who were in the mountains. This place is now a major sanctuary for millions of devotees and tourists from all around the world.
There is no muslim holiday for Fatima, although she is highly respected in the muslim religion, and particularly by the shi'a tradition, which holds that she was "immaculate" and one of the Fourteen Infalliables.
