"A reputation as a ruthless ruler was sealed that would last beyond his lifetime. In that respect, at least, Cnut had succeeded..." Cnut, or Canute, is one of the great 'what ifs' of English history. The Dane who became King of England after a long period of Viking attacks and settlement, his reign could have permanently shifted eleventh-century England's rule to Scandinavia. Stretching his authority across the North Sea to become king...