The original
Codex Justinianus was promulgated in April of 529 by the C. "Summa". This made it the only source of imperial law, and repealed all earlier codifications. However, it permitted reference to ancient jurists whose writings had been regarded as authoritative. Under Theodosus II's
Law of Citations, the writings of
Papinian,
Paulus,
Ulpian,
Modestinus, and
Gaius were made the primary juristic authorities who could be cited in court. Others cited by them also could be referred to, but their views had to be "informed by a comparison of manuscripts". The principal surviving
manuscript is the
Littera Florentina of the late sixth or early seventh century. In the Middle Ages, the
Digest was divided into three parts, and most of the manuscripts contain only one of these parts. The entire
Digest was first translated into English in 1985 by the Scottish legal scholar
Alan Watson. The
Digest was discovered in
Amalfi in 1135, prompting a revival of learning of Roman law throughout Europe. Other sources
https://simple.wikipedia.org/wiki/Wikipedia:Avoid_weasel_words which? claim it was discovered in 1070 and formed a major impetus for the founding of the first university in Europe, the
University of Bologna (1088). ==Conflicts of law==