Romanticism began in the mid-18th century and reached its height in the 19th century. It emphasized emotion, imagination, individualism, subjectivity, nature, and the supernatural. A key concern of Romantic literature was the divided self or crisis of identity. James Hogg's 1824 novel Private Memoirs and Confessions of a Justified Sinner explores this theme of a divided self through the character Robert Wringhim, who struggles to reconcile his spiritual and corporeal selves. The novel dramatizes an identity crisis, which was a major theme of Romantic literature during a time of social and political division.