Bonito was born during the Middle Age in a land known for its fertility at the time. Proof of its medieval past is its square-plan Longobard castle, which left four cylindric towers and a wooden drawbridge.

Anyway, it seems that its origins are more remote. To confirm it, it is the finding of ruins of ancient baths close to the mineral water font of Vetecala or Veticale, near the village, in the area of Marroni.