Ankenaton was the tenth king of the 18th Dynasty. He is well-known because he broke away from the traditional religion. He worshipped the god Aten, the sun god that was worshipped in earlier times. Ankenaten is theorized as being the world's first monotheist. A monotheist is a person who tries to convert worship of deities to the worship of just one god or deity. Early in his reign he changed his name from Amenhotep IV to Ankhenaten to show loyalty to Aten. He also changed his wife's name from Nefertiti, to Nefer-Nefru-Aten.
Ankhenaten died in the 18th year of his reign. His successor, Horemhab, claimed his reign began from the date of Amenhotep III, thus wiping out the entire rule of Ankhenaten for future generations.