Why did Islam spread so fast? Well, it is always very bad historical practice to assign a single cause to a complex historical event that must of necessity have had many causes. But, in a word, Justinian.In chapter 15, Charlemagne turns the lights back on. An eager public awaits the publication of chapter 16, "More Fun with Barbarians," addressing the Vikings, as prefigured by our own Lars Walker in a forward-thinking comment.
Another excellent post from Dr. Boli concerns unusual musical instruments.