Similar to Jane’s answer above, there are far too many entries in Wikipedia overall for me to have seen the total, and more are added all the time. I couldn’t possibly answer this with accuracy. ~
Do you know anyone who has read all of them? I don't.
Wikipedia is not a trustworthy source of information....we should all remember that. It can, however, point us in the right direction in research. I would never cite Wiki as a source in written work.