Formed in 1977 with a mission to “build upon the tradition of Chicano and indigenous culture,” Centro Cultural Aztlán is a long-standing champion of Día de los Muertos in San Antonio. The 41st edition of the cultural arts organization’s pioneering group exhibition “Altares y Ofrendas” is anchored by a diverse showcase of ofrendas but also promises pán de muerto, ponche de frutas, a performance by the skeleton-faced Carnaval de San Anto and an “Avenida de los Muertos” brimming with artisanal creations.