The projective line is related to the Kronecker algebra, […] In general one has to deal with the so-called weighted case which leads to the study of the canonical algebras and to the weighted projective lines (as Ringel pointed out in his survey [93]).

The Fisherman and His Wife

That is so.

Whereas she found the Goddesse with her crew, / After late chace of their embrewed game, / Sitting beside a fountaine in a rew ….