1. In the 18th century, literature embodied the values of the upper classes and helped unite the middle and upper classes after the civil war.
2. In the 19th century, literature emerged as a distinct concept during the Romantic period, focusing on imagination and creativity rather than just technical writing. Major romantic poets also had political and philosophical influences.
3. In the 20th century, the study of English literature grew to instill values in the middle class and pacify workers, as religion failed to serve as an ideology. It became a way to transfer moral law and nationalism during wartime.