No other period in English literature displays more variety in style, theme, and content than the Romantic Movement of the eighteenth and nineteenth centuries. Furthermore, no period has been the topic of so much disagreement and confusion over its defining principles and aesthetics. Romanticism, then, can best be described as a large network of sometimes competing philosophies, agendas, and points of interest. In England, Romanticism had its greatest influence from the end of the eighteenth century up through about 1870. Its primary vehicle of expression was in poetry, although novelists adopted many of the same themes.