Indeed. Consider: the Viking era began when Charlemagne began wars of forced conversion on the Norse peoples. Now, imagine that Martel had lost, and it was the *Muslims* who launched wars of aggression against the Vikings. Only one of two results, really... complete Muslim conquest, or today the head honcho in Damascus would be a fella named Ragnar.
ODIN!!!!
Is that true? Is that when the Vikings started raiding? Or settled down? No, it is too early for 'when they settled down.' But that too was due to Christianity, was it not? I always wondered ...