Of the lost treasures of classical literature, it is doubtful whether any are more to be regretted than the missing books of Livy. That they existed in approximate entirety down to the fifth century, and possibly even so late as the fifteenth, adds to this regret. At the same time it leaves in a few sanguine minds a lingering hope that some unvisited convent or forgotten library may yet give to the world a work that must always be regarded as one of the greatest of Roman masterpieces.