Eight Centuries This link opens in a new windowEight Centuries (formerly 19th Century Masterfile) is a database covering source material dating from 1106 until 1960, aggregating indexes, catalogs, collections, and other finding aids. Specific Legal Indexes are: Index to Legal Periodical, 1908-1935 (AALL) and Index to Legal Periodical Literature, 1786-1937 (Jones & Chipman)