Based on rituals observed by indigenous peoples of Mexico and other Latin countries, Dia de los Muertos, or Day of the Dead, is a day when the living remember their departed relatives and, some believe, welcome them back from the afterlife for a brief visit.

Celebrated on Nov. 1 and 2 each year, the joyful celebration involves altars decorated with offerings to the deceased.

The Celebracion de Dia de los Muertos on Friday at the Rembrandt Yard on 13th Street in Boulder was organized by Boulder-based nonprofit Amistad, dedicated to immigrant rights.