James Schuyler's letters

Much to my surprise, Bookslut published (a month later) the other review I had submitted to them - and this time with my name. Here it is. I hope you enjoy it. I actually got rather interested in the subject of when people first got the idea of publishing private correspondence -- thinking that this might be a real psychological turning point of some sort -- but was never able to figure it out. Granted, my efforts consisted of sending off an e-mail to an old professor of mine (no response, sadly) but I wasn't sure how else to pursue the subject. I don't mean the oldest collection of letters that's even been published, but the year in which someone first thought that a collection of posthumous letters would, on its own, find an audience. Any help is appreciated.