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 (varies by source). 8C aggregates indexes, catalogs, collections, and other finding aids, and includes citations to 9,000 periodicals in 30+ languages. 8C provides access to articles, newspapers, books, U.S. patents, government documents, and images.