Early Development of the Great Kingdom

First brought to my attention by Allan Grohe over at Canonfire, an author named Jon Peterson has written a book called Playing At the World in which he looks into the history of how RPGs sprang from wargames in the 70's. To go with his work Mr. Peterson has a blog elaborating on the same subject including info on the nascent settings of Blackmoor and Greyhawk that we all know and love. His latest post on the formative Great Kingdom is eye opening and worth the time to read. Check it out!