The Rome criteria have been evolving from the first set of criteria issued in 1989 (The Rome Guidelines for IBS) through the Rome Classification System for FGIDs (1990), or Rome-1, the Rome I Criteria for IBS (1992) and the FGIDs (1994), the Rome II Criteria for IBS (1999) and the FGIDs (1999) to the recent Rome III Criteria (2006).