Complex sentence: The confines of the Industrial Revolution also had their influence on Romanticism, which was in part an escape from modern realities; indeed, in the second half of the 19th century, "Realism" was offered as a polarized opposite to Romanticism.
Split into simpler sentences: The confines of the Industrial Revolution also had their influence on Romanticism, which was in part an escape from modern realities. Indeed, in the second half of the 19th century, "Realism" was offered as a polarized opposite to Romanticism.