Excerpts from Books and Wikipedia
"One of the university's earliest recorded scholars was Irnerius, who founded the School of Jurisprudence sometime between 1084 and 1088. . . . Irnerius's work culminated in his summary of Justinian's laws, the Summa Codicis, which was an important stage in the cultural development of European society that laid the foundations for a system of laws that were written, systematic, and rational." [1001 Days]