In the fourth year of his reign, Amenhotep IV decided to move the capital to Akhetaten (modern Amarna). In his fifth year, Amenhotep IV officially changed his name to Akhenaten, and Nefertiti was henceforth known as Neferneferuaten-Nefertiti. The name change was a sign of the ever-increasing importance of the cult of the Aten. It changed Egypt's religion from a polytheistic religion to a religion which may have been better described as a monolatry (the depiction of a single god as an object for worship) or henotheism (one god, who is not the only god).