Northrop Frye was a 20th century Canadian literary critic who developed a theory of archetypal criticism. He believed that recurring myths and archetypes could be identified across different works of literature. Frye identified four main archetypes - spring/dawn, summer/zenith, autumn/sunset, and winter/darkness - that correspond to phases of the solar cycle. Each archetype is associated with certain myths, characters, and genres of literature. Frye aimed to develop a systematic and scientific approach to literary criticism based on analyzing recurring archetypes and myths.