The Putney Debates turned up in the history course about Early Modern England (Yale) I am about to finish. (feed) Previously and more extensively, they were discussed on the Binge Thinking History Podcast. (feed)
During the 17th century when the English both beheaded their king, as well as reinstated and also replaced him, the Putney Debates were a sign of the times how they were looking for a befitting constitutional order, with both a monarch and with an influential parliament. Both podcasts give great insight in this subject.
(A quick posting in order to keep up with the ideas I have and the little time available to post)