The Jewish hat also known as the Jewish cap, Judenhut (German) or Latin pilleus cornutus ("horned skullcap"), was a white or yellow cone-shaped pointed hat worn by Jews in Medieval Europe and some of the Islamic world. Initially worn by choice, its wearing was enforced in Europe after 1215 for adult male Jews to wear while outside a ghetto in order to distinguish Jews from others. Like the phrygian cap it often resembles, the hat may have originated in pre-Islamic Persia—a similar hat was worn by Babylonian Jews.