  : Aha, you're acting on the temptation to include a quotable quote in a Wikipedia article. It's something that I've acted on myself: for example, my quotation from Prutky. My suggestion is to repeat Silverberg's own words  but add suppliment his words with the information that specialists in Ethiopian history can't document any actual Ethiopian reaction to this identification. Although it's a POV, as long as it's properly attributed to a credible writer (AFAIK, Silverberg is credible, although Pankhurst is more of an authority on Ethiopia) then it can be added as one POV  as long as we acknowledge other credible POVs. Does this make sense?   