A halo (from the Greek , ; also known as a nimbus, aureole, glory, or gloriole) is a crown of light rays, circle or disk of light that surrounds a person in art. It has been used in the iconography of many religions to indicate holy or sacred figures, and has at various periods also been used in images of rulers and heroes. In the religious art of Ancient Greece, Ancient Rome, Christianity, Hinduism, and Buddhism among other religions, sacred persons may be depicted with a halo in the form of a circular glow, or flames in Asian art, around the head or around the whole body—this last one is often called a mandorla. Halos may be shown as almost any colour or combination of colours, but are most often depicted as golden, yellow or white when representing light or red when representing flames. Ancient Mesopotamia Sumerian religious literature frequently speaks of (loaned into Akkadian as ), a "brilliant, visible glamour which is exuded by gods, heroes, sometimes by kings, and also by temples of great holiness and by gods' symbols and emblems." Ancient Greek world Homer describes a more-than-natural light around the heads of heroes in battle. Depictions of Perseus in the act of slaying Medusa, with lines radiating from his head, appear on a white-ground toiletry box and on a slightly later red-figured vase in the style of Polygnotos, . On painted wares from south Italy, radiant lines or simple haloes appear on a range of mythic figures: Lyssa, a personification of madness; a sphinx; a sea demon; and Thetis, the sea-nymph who was mother to Achilles. The Colossus of Rhodes was a statue of the sun-god Helios and had his usual radiate crown (copied for the Statue of Liberty). Hellenistic rulers are often shown wearing radiate crowns that seem clearly to imitate this effect. Asian art In India, use of the halo might date back to the second half of the second millennium BC. Two figures appliqued on a pottery vase fragment from Daimabad's Malwa phase (1600–1400 BC) have been interpreted as a holy figure resembling the later Hindu god Shiva and an attendant, both with halos surrounding their heads, Aureola have been widely used in Indian art, particularly in Buddhist iconography where it has appeared since at least the 1st century AD; the Kushan Bimaran casket in the British Museum is dated 60 AD (at least