Another valuable and exhaustive resource is "The Celtic World" edited by Miranda J. Green in 1995. http://books.google.com/books?id=nBzutED9sJIC&pg=PA145&lpg=PA145&dq=The+Celtic+World.+Green&source=bl&ots=M0lRB3nD5p&sig=6R4thAfFpaeJwWTdj9b3f4lLkng&hl=en&ei=x9h2S_vBFo6qswOCnO3KCA&sa=X&oi=book_result&ct=result&resnum=1&ved=0CAcQ6AEwAA#v=onepage&q=&f=false In her Introduction, Ms Green asks "Who were the Celts? How should we define this term? It is interesting that the same questions do not tend to be asked of - say - the Roman world. We are secure with Romans because they identified themselves as such: *Civis Romanus sum* ('I am a Roman citizen'). We cannot tell whether a comparable Celtic consciousness ever existed." Her book examines the question on multiple levels, including possible geographic origins. Bob U. -- "Perhaps too much of everything is as bad as too little." – Edna Ferber