One of the chief monuments is the Serapeum or sepulchre of the Apis bulls, discovered by Mariette in 1851.
It proved the most successful of the pagan cults in maintaining itself against Christianity, with which it had not -a little in common, both in doctrine and in emblems. But the destruction of the Serapeum at Alexandria in A.D.
Place of Apis (?), a name given to the site of the Serapeum at Memphis), but there is little doubt that Ptolemy Soter fixed the iconic type to serve for the god of the new capital of Egypt, where it was soon associated with Isis and Harpocrates in a triad.
On the mainland life seems to have centred in the vicinity of the Serapeum and Caesareum, both become Christian churches: but the Pharos and Heptastadium quarters remained populous and intact.
The ancient Serapeum (Puserhapi) and the name Userhap would be almost as familiar to early Greek wanderers in Egypt as the Apieum and Apis itself.
Records of the time that has elapsed between two regnal dates in the reigns of different kings are very helpful; thus stelae from the Serapeum recording the ages of the Apis bulls with the dates of their birth and death have fixed the chronology of the XXVIth Dynasty.
The statue of Serapis in the Serapeum of Alexandria was of purely Greek type and workmanship - a Hades or Pluto enthroned with a basket or corn measure on his head, a sceptre in his hand, Cerberus at his feet, and (apparently) a serpent.
Mariette's excavation of the Serapeum at Memphis revealed the tombs of over sixty animals, ranging from the time of Amenophis III.