《光明之城》出版后受到人们普遍重视。这是因为:如果它是真的,那么这是一个非常重要的中古文献的发现;如果它是假的,那这就是一个令人不齿的文化造假事件。此书的“年代差错”问题乃是辨识其真伪的关键所在。本文通过对十个“年代差错”问题的详细考证,论断《光明之城》是一部后人编造出来的伪书。鉴于有的“年代差错”一直延伸到20世纪,译编者塞尔本本人可能正是它的炮制者。 After the publication of “City of Light”, it has been widely valued by people. This is because: if it is true, then it is a very important discovery of medieval literature; if it is false, then it is an outrageous cultural fraud. The book’s “chronology of errors” issue is the key to identifying its authenticity. This article through a detailed research on the ten “errors of the age”, concludes that “the city of light” is a false book fabricated by descendants. In view of the fact that some of the “errors of the years” have been extended to the 20th century, the interpreter Selburn may be exactly what he was.