Akhenaten (r. 1353-1336 BCE) was a pharaoh of 18th Dynasty of the New Kingdom of Egypt. He is also known as 'Akhenaton' or 'Ikhnaton' and also 'Khuenaten', all of which are translated to mean 'successful for' or 'of great use to' the god Aten. Akhenaten chose this name for himself after his conversion to the cult of Aten. Prior to this conversion, he was known as Amenhotep IV (or Amenophis IV). He was the son of Amenhotep III (1386-1353 BCE) and his wife Tiye, husband of Queen Nefertiti, and father of both Tutankhamun (by a lesser wife named Lady Kiya) and Tutankhamun's wife Ankhsenamun (by Nefertiti).
His reign as Amenhotep IV lasted five years during which he followed the policies of his father and the religious traditions of Egypt. However, in the fifth year, he underwent a dramatic religious transformation, changed his devotion from the cult of Amun to that of Aten, and, for the next twelve years, became famous (or infamous) as the 'heretic king' who abolished the traditional religious rites of Egypt and instituted the first known monotheistic state religion in the world and, according to some, monotheism itself.
His reign is known as the Amarna Period because he moved the capital of Egypt from the traditional site at Thebes to the city he founded, Akhetaten, which came to be known as Amarna (also Tell el-Amarna). The Amarna Period is the most controversial era in Egyptian history and has been studied, debated, and written about more than any other.
Amenhotep IV may have been co-regent with his father, Amenhotep III, and it has been noted that the sun-disk known as the 'Aten' is displayed on a number of inscriptions from this period of the earlier king's reign. The Aten was not new to the rule of Akhenaten and, prior to his conversion, was simply another cult among the many in ancient Egypt. Continue reading from World History Encyclopedia
Akhenaten: Unorthodox Ruler Who Had Only One God (Ancient Pages)
Akhenaten the Heretic 1352–1336 BC (Discovering Egypt)
Akhenaten and the Amarna Period (BBC)
Akhenaten: Egyptian Pharaoh, Nefertiti's Husband, Tut's Father (Live Science)
Akhenaten: The Mysteries of Religious Revolution (American Research Center in Egypt)
Akhenaten, Nefertiti & Aten: From Many Gods to One (American Research Center In Egypt)