Attalids were thus an emerging power with the desire to demonstrate their importance to the outside world through the construction of imposing buildings. Citing the Book of Revelation chapter 2 verses 12 and 13 in the Christian Bible, many scholars have argued that the Pergamon Altar is the "Seat of Satan" mentioned by John the Apostle in his letter to the church at Pergamon. The Endowment and Dating Until the second half of the 20th century it had been assumed by some scholars that the altar was endowed in 184 BC by Eumenes II after a victory over the Celtic Tolistoagian tribe and their leader Ortiagon. Investigation of the altar's construction and friezes has led to the conclusion that it was not conceived as a monument to a particular victory. The design of Pergamene victory monuments is known from the literature and monument relics and is unlike that of the Pergamum Altar. The Gigantomachy frieze on the outside walls of the Pergamon altar avoids to a great extent any direct references to contemporary military campaigns — except for the "Star of Macedonia" on the round shield of one of the Giants on the eastern frieze, and a Celtic oblong shield in the hand of a god on the northern frieze. The struggle of the Olympian gods appears much rather to be a cosmological event of general ethical relevance. The scanty remnants of the dedicatory inscription also seem to indicate that the altar was consecrated to the gods because of "favors" they had bestowed. The divine addressees could be especially Zeus, father of the gods, and his daughter Athena, since they appear in prominent locations of the Gigantomachy frieze. An important dating criterion is also the incorporation of the altar from the perspective of city planning. As the most important marble edifice of the Hellenistic residence and indeed erected in a prominent position, it was assuredly not begun only at the conclusion of numerous initiatives to upgrade the acropolis of Pergamon under Eumenes II. That events from the last years of Eumenes II's reign, the increasing uncoupling from the Romans, and the victory over the Celts in 166 BC at Sardis are reflected in the two friezes of the Pergamon Altar is merely speculation that does not provide a sufficient foundation for a late dating of the altar. The inner Telephus frieze relates the legendary life of Heracles' son Telephus and