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The papyrus fragments that belong almost certainly to Sophocles' Inacbos (P.Oxy. 2369 and P. Tebt. 692) have been admirably discussed by Pfeiffer andCarden.1 But one remarkable feature that has never been explained adequatelyis the apparent reference to a black Zeus. P. Oxy. 2369 contains a fragmentarydescription of a stranger turning Io into a cow with a touch of his hand and thenleaving the palace.
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Richard Seaford (1980) studied this question.
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