Aten also spelled Aton or Atun
is always represented as simply the Sun Disk with rays ending in arms.
Atun as the Sun was worshipped from about 2,000 BCE until a little after
1362 BCE. According to the Encyclopedia of Gods by Michael Jordan
on page 31 "His influence had been growing under several pharaoh's including
Amenhotep II, Tuthmosis IV, and Amenhotep III, who initiated a cult of
Aten at Heliopolis. Aten rose to ultimate supremacy for a brief period
during the reign of Amenhotep IV who renamed himself AkhenAten in honor
of the God. During AkhenAten's reign from 1379 BC Aten became the
supreme God of Egypt eclipsing all others". The A'aperti Akh-un-Atun
was the physical manifestation of Atun on Ta/Earth.
Amunophis IV -Akh-Un-Atun
Akh-Un-Atun decided that Atun was the Supreme
Netjer and the Only Netjer. He eliminated the worship of the Temple
of Amun and built the Temple of Atun right across from it. The worship
of Atun is considered the first form of Monotheism. Akh-Un-Atun brought
forth his ideas so radically that when he died nearly all traces of him
and the Netjer Atun were removed from the walls. Akh-Un-Atun was
the husband of Nefer-Titi and the Father in law of Djehuti-Ankh-Amun(King
Tut). Akh-Un-Atun revolutionized Khemetic Art, as well as Khemetic
religion. He changed the capital of Khemet from Thebes to AkhetAten(the
horizon of Aten) which is known as Tell-El-Amarna today.
