Aten was, properly speaking, an old name for the visible disk of the sun — the physical sun as opposed to the divine person Ra. Through most of Egyptian history, Aten was a poetical synonym, mentioned occasionally in solar hymns, never the focus of a major cult. But under the pharaoh Akhenaten of the late Eighteenth Dynasty (reigned c. 1353–1336 BCE), Aten was elevated by royal fiat to a position unique in the history of Egyptian religion. Akhenaten — born Amenhotep IV, but having changed his name to mean "Beneficial to the Aten" — closed or abandoned the temples of the other gods, particularly Amun's at Thebes; he founded a new capital, Akhetaten (modern Tell el-Amarna), in Middle Egypt, dedicated entirely to Aten; he forbade the depiction of any divine image except the disk itself, depicted with rays ending in small hands, the rays reaching down to bestow the ankh-symbol of life upon the king and his family. The Aten was the sole god, or nearly so; the king, his queen Nefertiti, and the royal family were the sole intercessors with him; the rest of the pantheon was effectively suppressed.
The theology of Aten is preserved most fully in the Great Hymn to the Aten, inscribed in the tomb of the courtier Ay at Amarna. It is among the most beautiful religious lyrics of the ancient world. "Thou risest fair from the horizon of heaven, O living Aten, who dost begin to live. Thou fillest every land with thy beauty.... Thy rays embrace the lands.... When thou settest in the western horizon, the world is in darkness as if in death. The lion comes forth from his den; the serpents bite. Then the earth is in silence.... When thou risest, the earth is bright: thy rays drive away the darkness.... How manifold are thy works! They are hidden from the face of man, O sole god, beside whom there is no other." The hymn's resemblance to Psalm 104 of the Hebrew Bible is sufficiently close that the literary connection has been argued for more than a century; the question of dependence is unresolved.
Akhenaten's revolution outlived him by less than a generation. His son-in-law and successor Tutankhamun (originally Tutankhaten, but he changed his name back) restored the older gods; Akhetaten was abandoned, the temples of Amun were reopened, the priesthood of Amun reasserted itself, and Akhenaten's own name was systematically erased from king-lists and monuments. The Atenist episode came to be referred to obliquely as "the time of the rebel," and the heretic king's memory was buried for three thousand years until modern excavation recovered it.



