This is quite well written, but I was concerned about the number of sentences that began with "but" or "and," which isn't grammatically correct. &nbsp;I changed those sentences when possible,and changed some of the terms that were used rather frequently, but didn't make any changes that affected meaning. &nbsp;In a few places, quotation marks opened but didn't close. &nbsp;I put in the closing quotes when I was comfortable guessing at where they belonged. &nbsp;These are minor matters, though, compared to the impressive job of research and interpretation that you've done.