There's a really interesting blog post that discusses an unusual mid 19th century use of the word "cool": http://therumpus.net/2011/06/there-is-a-head-rolling-o

There's a really interesting blog post that discusses an unusual mid 19th century use of the word "cool": http://therumpus.net/2011/06/there-is-a-head-rolling-over-the-platform-the-strange-case-of-george-lippard%E2%80%99s-the-quaker-city/ http://therumpus.net/2011/06/there-is-a-head-rolling-over-th...