It is certain that when the Egyptians occupied Siwa, in about 550 B.C., according to Mr. Bates, they discovered a local Libyan god firmly established and supported by a powerful but barbarous cult. So great was its reputation that King Crœsus of Lydia travelled to Siwa and consulted the oracle a little before, or at the time of, the Egyptian occupation. The Egyptians identified the local god of the oasis with their own Ammon. In the fourth century B.C. the god Ammon, of the Ammonians, for this was the name by which the people of Siwa were now known, had become one of the most famous oracles of the ancient world. At the time when the Egyptians recognized and worshipped the god of the oasis, a number of stories became prevalent, tending to prove that the deity at Siwa originated from the Ammon of Thebes, and one legend even went so far as to assert that the Ammon of Thebes was himself originally a Libyan herdsman who was deified by Dionysius. The following are some of the many legends which relate the origin of the Siwan god, and which suggest its connection with the Theban Ammon. Herodotus, in whose works there are frequent allusions to the Ammonians, describes the inhabitants of the oasis of Ammon as being colonists from Egypt and Ethiopia, speaking a mixed language, and calling themselves Ammonians, owing to the Egyptians worshipping Jupiter under the name of Ammon. He relates that the colonists instituted an oracle in imitation of the famous one on the Isle of Meroë, and mentions the following account of its origin. Two black girls who served in the Temple of Jupiter Ammon at Thebes were carried away by Phœnician merchants. One of them was taken to Greece, where she afterwards founded the Temple of Dodona, which became a well-known oracle; the other was sold into Libya and eventually arrived at the kingdom of the Ammonians. Owing to her strange language, which resembled “the twittering of a bird,” she was supposed by the inhabitants to possess supernatural qualities; her reputation increased, and her utterances came to be regarded as the words of an oracle. There is a different version of the same fable in which the girls are represented as two black doves, one flying to Greece, the other to Libya.