The Divine Comedy, written by Dante Alighieri in the early 14th century, is an EPIC poem divided into three parts: Inferno, Purgatorio, and Paradiso. It is considered one of the greatest works of world literature and is often referred to as an EPIC poem, with the answer to this crossword being EPIC. The poem follows Dante's journey through Hell, Purgatory, and Heaven, and is a commentary on the nature of sin and redemption.