The Great Circling Poets of Arium were a group of Golgafrinchan poets from planetGolgafrincham. These Circling Poets used to live in remote mountain passes where they would lie in wait for small bands of unwary travellers, circle round them, and throw rocks at them. And when the travellers cried out, saying why didn't they go away and get on with writing some poems instead of pestering people with all this rockthrowing business, they would suddenly stop, and then break into one of the seven hundred and ninety-four great Song Cycles of Vassilian.
All this lays in the planet's remote past. It was, however, a descendant of one of these eccentric poets who invented the spurious tales of impending doom which enabled the people of Golgafrincham to rid themselves of an entire useless third of their population.