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The Jewish hat, also known as the Jewish cap, Judenhut or Latin pileus cornutus, was a cone-shaped pointed hat, often white or yellow, worn by Jews in Medieval Europe and some of the Islamic world. Initially worn by choice, its wearing was enforced in some places in Europe after the 1215 Fourth Council of the Lateran for adult male Jews to wear while outside a ghetto to distinguish them from others.
New old Q!