Dante Alighieri (c. 1265–1321) was a seminal Italian poet, writer, and philosopher whose work profoundly shaped Western literature. Writing during the Late Middle Ages, Dante made the revolutionary choice to compose his major works in the vernacular Tuscan dialect rather than Latin, which was the dominant scholarly language of his era. This decision, defended in his treatise De vulgari eloquentia, helped establish his native Florentine dialect as the foundation for the modern standardized Italian language, earning him the moniker "father of the Italian language."
His magnum opus, the Divine Comedy (originally Comedìa), is widely celebrated as one of the greatest literary achievements in history. Through its vivid, structured depiction of Hell, Purgatory, and Heaven, the epic poem introduced the interlocking three-line rhyme scheme known as terza rima and deeply influenced centuries of Western art and literature. Alongside his earlier work The New Life (La Vita Nuova), Dante's writing set a precedent that inspired subsequent Italian literary giants like Petrarch and Boccaccio, with whom he is celebrated as one of the "three crowns" of Italian literature.
