Legion (theology)

Legion was a demon described in the Christain Bible and was supposedly a creature composed of many different evil spirits - the demon had taken possession of a man during the travellings of Jesus and the Lord spoke with the spirit and asked it it's name (to which it replied the now famous quote of "call us Legion, for we are many").

Jesus continued to speak with the evil spirit and demanded it to leave the man, the evil spirit was afraid of Jesus' power and did as commanded - taking possession of a herd of pigs instead which promptly ran into the sea and drowned.