Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Go back to school

No reputable historian ever uses the term "Dark Ages" since this is an inaccurate and pejorative term for a period in which art and learning were thriving in Byzantium and many places in western Europe (Ireland, for instance). Moreover, anyone who places Van Eyck in the Middle Ages is simply an ignoramous and should not be passing him/herself off as an expert on any aspect of history. It may be that these errors do not occur within the DVD under review, but are merely the gaffes of whoever wrote the "editorial review". I haven't actually seen "Landmarks of Western Art" and the review does not encourage me to do so. I guess this might disqualify me from writing a review, but after all, this is Amazon.com-- since when do reviews have to be written by people who've actually seen the product?! Just check out books by writers like Kate O'Beirne, whose work has been subject to a massive free-for-all of mud-slinging from people who clearly have never read a word of it.