The Sed festival (also known as Heb Sed or Feast of the Tail) was an ancient Egyptian ceremony which was held to celebrate the continued rule of a pharaoh. The name derives from the name of an Egyptian wolf god, one of whose names was Wepwawet or Sed. The less formal feast name, the Feast of the Tail, is derived from the name of the animal's tail that typically was attached to the back of the pharaoh's garment in the early periods of Egyptian history. This suggests that the tail was the vestige of a previous ceremonial robe made out of a complete animal skin.