"The waves surround the sinking throne
Singing "Crown him, crown him,"
'Those who love
All bent their knees."
How is Cnut known in popular mythology? As the fool who thought he could turn back the tide. His attempt to show humility has been turned into a story of vainglory. Not even as successful as Ozymandius, he has merely left us a story of foolishness and an anagram joke - whose variety apparently never fails - for the people who comment on Guardian web pages.