In feudal times the peasants worked outside in the blazing sun.
Their skin grew swarthy, gnarled and rough; in other words, 'over-done'!
The gentry, on the other hand, stayed indoors in the shade.
Their skin was white and delicate, not marked by toil or trade.
When a peasant showed his inner-arm, all work-scarred and unclean,
The blood beneath the surface, in his veins, could not be seen.
But the veins of the landed gentry showed up all clear and blue,
Proof their superiority was surely showing through.
So, if you were blue-blooded, it was very quickly seen,
Especially if you happened to be a reigning King and Queen!
More snobbery here: