Longboats have been sighted, the evidence of war has begun
Many Nordic fighting men, their swords and shields all gleam in the sun
Call to arms, defend yourselves, get ready to stand and fight for your lives
Judgment day has come around, so be prepared, don't run, stand your ground
So begins the greatest British album of all-time, Iron Maiden’s The Number of the Beast, at least according to those who <a href="http://www.bbcamerica.com/anglophenia/2012/05/the-brit-list-the-five-greatest-british-albums-of-all-time/">responded to a survey</a> put out by British retailer HMV.