The Celts did not form a single religious or political unity. They were organized into tribes spread across what is now several countries. As a result, of the 374 Celtic deities which have been found, over 300 occur only once in the archeological record; they are believed to be local deities. There is some evidence that their main pantheon of Gods and Goddesses might have totaled about 3 dozen - perhaps precisely 33 (a frequently occurring magical number in Celtic literature). Some of the more famous are: Arawn, Brigid, Cernunnos, Cerridwen, Danu, Herne, Lugh, Morgan, Rhiannon and Taranis. Many Celtic deities were worshipped in triune (triple aspect) form. Triple Goddesses were often sisters.