Dice have been used since before recorded history, and it is uncertain where they originated. The oldest known dice were excavated as part of a 5000-year-old backgammon set at the Burnt City, an archeological site in south-eastern Iran. Other excavations from ancient tombs in the Indus Valley civilization indicate a South Asian origin. Dicing is mentioned as an Indian game in the Rigveda, Atharvaveda and Buddha games list. Continue reading for a few dice you probably haven't seen before.