Question Author
Thanks for the useful link ACtheTROLL
I had tried something similar, but seeing an explanation in writing really helped.
Sadly, don't think Encarta 2009 would have helped. No researcher worth his or her salt would ever simply accept a single source for any answer to a question. That is why we used to build huge libraries. But, even then, we all had our favourite books that we went to first.
However, it was a very foolish researcher who referred only to one or two sources; for the public-at-large and students-in-particularly, were extremely adept at spotting omissions, errors, misquotes, or stale facts
The Internet has made the-proving-of-facts-and-answers, a very much easier task.
I am grateful that you took the time to reply
Old Salt