There is a long standing tradition of associating gems with astrological signs. Belief in the magical and mystical power of gems goes back to ancient history. The ancient Babylonians used gems as talismans, associated them with astrology, and believed in their healing properties. This tradition continued through the ancient Greeks and Romans, whose writings on gems, mostly regarding their medical properties, have passed down to us. Similar beliefs were held by many other ancient peoples of the world.