Atenism, also known as the Aten religion, the Amarna religion, and the Amarna heresy, was a religion in ancient Egypt. It was founded by Akhenaten, a pharaoh who ruled the New Kingdom under the Eighteenth Dynasty. The religion is typically described as monotheistic or monolatristic, although some Egyptologists argue that it was actually henotheistic. Atenism was centred on the cult of Aten, a god depicted as the disc of the Sun. Aten was originally an aspect of Ra, Egypt's traditional solar deity, though he was later asserted by Akhenaten as being the superior of all deities. In the 14th century BC, Atenism was Egypt's state religion for around 20 years, and Akhenaten met the worship of other gods with persecution; he closed many traditional temples, instead commissioning the construction of Atenist temples, and also suppressed religious traditionalists. However, subsequent pharaohs toppled the movement in the aftermath of Akhenaten's death, thereby restoring Egyptian civilization's traditional polytheistic religion. Large-scale efforts were then undertaken to remove from Egypt and Egyptian records any presence or mention of Akhenaten, Atenist temples, and Atenist assertions of a uniquely supreme god. History of Aten before Akhenaten The word Aten (), meaning "circle," "disc," and later "sun disc," is first found in the 24th century BC Abusir Papyri, discovered in the mortuary temple of the Fifth Dynasty pharaoh Neferirkare Kakai. Aten, the god of Atenism, first appears as a god in texts dating to the Twelfth Dynasty, in the Story of Sinuhe. During the Middle Kingdom, Aten "as the sun disk...was merely one aspect of the sun god Re." It was a relatively obscure sun god; without the Atenist period, it would barely have figured in Egyptian history. Although there are indications that it was becoming slightly more important during the eighteenth dynasty, notably Amenhotep III's naming of his royal barge as Spirit of the Aten, it was Amenhotep IV who introduced the Atenist revolution in a series of steps culminating in the official installment of the Aten as Egypt's sole god. Although each line of kings prior to the reign of Akhenaten had previously adopted one deity as the royal patron and supreme state god, there had never been an attempt to exclude other deities, and the multitude of gods had always been tolerated and worshipped. During the reign of Thutmosis IV, it was identified as a distinct solar god, and his son Amenhotep III established and