In the High Middle Ages, most legal situations in France were highly local, regulated by customs and practices in local communities. Historians tend to be attracted by the large regional or urban customs, rather than local judicial norms and practices. Beginning in the 12th century, Roman law emerged as a scholarly discipline, initially with professors from Bologna starting to teach the Justinian Code in southern France and in Paris. Despite this, Roman law was largely academic and disconnected from application, especially in the north.