 During the Middle Ages, Bodio and the now abandoned village of Simbra (or Saimola) formed a "Degagna" in the Giornico area.During the reign of the cathedral of Milan over the three "Ambrosian Valleys", in May and November the "placita della Leventina" meetings were held in Bodio.The "Placita della Leventina", was a meeting of the Leventina valley used to administer justice and to discuss local issues.