In the panorama of the writings of Roman jurisprudence, the Enchiridion (literally Manual') by Sextus Pomponius (2nd century A.D.) is a work of absolute originality and great descriptive effectiveness: the fragments we have received from Digesta Iustiniani (almost 70) give us what remains of a text in which the author, adopting an unprecedented perspective, investigates the origin of law and its progress, the magistrates and the history of scientia...