Of which movement in English literature is Chaucer often considered the first representative?

Chaucer is often considered the first representative of the Humanism movement in English literature because his works, such as "The Canterbury Tales," focused on the individual and human experiences, as well as the importance of reason and education. Humanism emphasized the value of human beings and their ability to reason, rather than relying solely on religious or supernatural explanations. Chaucer's works reflected this humanistic perspective and marked a shift towards a more secular and individualistic approach in literature.