The outside of the tombs were layered with white clay and charcoal; white clay layering was a practice that originated with Chu burials, while charcoal layering was a practice that was followed during the early western Han dynasty in the Changsha area.
The outside of the tombs were layered with white clay and charcoal. White clay layering was a practice. This practice originated with Chu burials. Charcoal layering was a practice. This practice was followed during the early western Han dynasty in the Changsha area.