Catholic Encyclopedia: Whether you are Catholic or not, the Catholic Encyclopedia is a useful reference for Roman residents, because it covers the major artists, architects, authors, donors, prelates, saints, doctrines, emperors, Roman families, churches, monuments, etc. If you want information on just about anything in Rome, try on the Internet. There are links to alphabetical lists on the top of the page. The Encyclopedia is avowedly Catholic and may only define Catholic associations for some subjects or persons. To quote from its introduction, the Encyclopedia "differs from the general encyclopedia in omitting facts and information which have no relation to the Church. On the other hand, it is not exclusively a church encyclopedia, nor is it limited to the ecclesiastical sciences and the doings of churchmen." Note also that the Internet version of the Encyclopedia is based on the ninety year old print version, so some modern scholarship may not be included.