Day of the Dead Celebration (Día de los Muertos) is a three-day event in Mexico and parts of the US in which people celebrate their ancestors. It roughly corresponds to Halloween on the USA calendar. To celebrate Day of the Dead and All Saint's Day, they wear skull masks as a tribute to death and rebirth. Skulls made from sugar are a favorite decorative gift called Sugar Skulls. The art associated with this ritual originates from Aztec and early Mexican eras and is characterized by images of skeletons, skulls, and folkloric costume.