As with the celestial references in Calenda (Big Ass Bang!), here Biggers again relates cosmology to the African American experience. UGRR:US2.2 is made from old quilts; Biggers was attracted to the ready-made patterns and colors of the textiles and thought they could serve as evocative backgrounds for his line drawings. Quilts also have cultural significance in African American history: during the era of the Underground Railroad, it is believed that displayed quilts were sometimes used to signal safe routes to escaping slaves headed north. Biggers’ drawing and appliqué dots on the quilts also echo elements of a previous art project in which he created a celestial map of stops on the Underground Railroad within Philadelphia.