The "Codex Justinianus" and the Institutes of Justinian were known in Western Europe, and along with the earlier code of Theodosius II, served as models for a few of the Germanic law codes; however, the "Digest" portion was largely ignored for several centuries until around 1070, when a manuscript of the "Digest" was rediscovered in Italy. This was done mainly through the works of glossars who wrote their comments between lines ("glossa interlinearis"), or in the form of marginal notes ("glossa marginalis"). From that time, scholars began to study the ancient Roman legal texts, and to teach others what they learned from their studies. The center of these studies was Bologna. The law school there gradually developed into Europe's first university.