Miniature art found by researcher David Xavier Kenney on a one-of-a-kind jade and iron Ritual Dao (Chopping) Sword from the Warring States period may give the first real clues about the origin of the mysterious Sanxingdui, who existed from the 12th to the 11th c. B.C., then disappeared leaving no written records. The sword's blade is likely made of meteorite iron and features a miniature knife (representing a legendary fishing knife) designed to cut the holder's index finger, making it a blood sword. It also appears to be designed to rock side-to-side for 45 seconds exactly when balanced on its pommel and gently tapped, suggesting it was a moving sword used as part of a shaman's ritual.