In particular, it was during the Dark Ages that Europeans developed the stirrup, the horse collar and the moldboard plow.
Sure about that? http://richardcarrier.blogspot.com/2007/07/experimental-history.html http://richardcarrier.blogspot.com/2007/08/lynn-white-on-horse-stuff.html
Sure about that? http://richardcarrier.blogspot.com/2007/07/experimental-history.html http://richardcarrier.blogspot.com/2007/08/lynn-white-on-horse-stuff.html