The Divine Comedy is a narrative poem by Dante Alighieri that describes the author's travels through Hell (Inferno), Purgatory (Purgatorio), and Paradise (Paradiso). This trio of books, or canticas, is one example of the number three as a theme throughout the work. Each book consists of 33 cantos, which added to an introductory canto, totals 100. Each cantica follows a pattern of 9 phases plus 1 for a total of ten-9 circles of hell plus Lucifer, 9 rings of Mount Purgatory plus the garden of Eden, 9 celestial bodies of Paradise followed by the Empyrean essence of God. Widely considered the preeminent work in Italian literature, it helped establish the Tuscan language as the standardized Italian language

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