The cult of the Apis bull at Memphis was one of the oldest cults in Egypt. The Apis bull was a manifestation of the god Ptah and an intermediary for that god as well, endowed with oracular powers. The Apis Bull was chosen only after its predecessor had died, selected by its markings to be revered as a god. The animal was worshipped and attended to by priests. It was provided a harem of cows. Upon death it was mummified and entombed in the catacombs of the Serapeum.