This link provides a timeline of literary movements, adapted from Holman and Harmon's A Handbook to Literature.
Use this database to search reference books. It's a great place to find definitions of the various -isms you're studying this semester.
Caspar David Friedrich, Wanderer above the Sea of Fog, 1818 (From Wikimedia Commons)
ROMANTICISM: A fundamental development in Western art, literature, music, and their related fields of theory in the late 18th and early 19th centuries. Romanticism constituted a reaction against the unquestioned authority of reason and tradition and an affirmation of faith in the individual's innate powers of creativity.
Its various manifestations included a passionate concern with the relationship between human beings and their natural environment, a new interest in the primitive and the irrational (including dreams, hallucinations, and madness), and an emphasis on emotional intensity.
-From The MacMillan Encyclopedia, Credo Reference