The Day of the Dead celebrations in Mexico developed from ancient traditions. Rituals celebrating the deaths of ancestors had been observed by these civilizations 3,000 years ago! It’s a 3-day celebration. On October 31, All Hallows Eve, the children make a children’s altar to invite the angelitos (spirits of dead children) to come back for a visit. November 1 is All Saints Day, and the adult spirits will come to visit. November 2 is All Souls Day, when families go to the cemetery to decorate the graves and tombs of their relatives. The three-day fiesta is filled with marigolds, the flowers of the dead; muertos (the bread of the dead); sugar skulls; cardboard skeletons; tissue paper decorations; fruit and nuts; incense, and other traditional foods and decorations.