RAVENNA, Italy—As she has each evening for the last eight months, Giuliana Turati opened her well-worn copy of Dante’s “Divine Comedy” as the last of 13 peals of a church bell reverberated around the tomb of the great Italian poet. Italy is honoring Dante Alighieri—who died in exile from Florence on Sept. 13, 1321—in myriad ways on the 700th anniversary of his death. Those include new musical scores and gala concerts, exhibits, and dramatic readings against stunning backgrounds in every corner of the country. But nowhere is the tribute more intimate than before his tomb, which was restored for the anniversary, as dusk falls each day in the city of Ravenna, a former Byzantine capital. Turati, a life-long Ravenna resident, comes to listen as volunteer Dante-lovers read a single canto, following along in the copy of the “Divine Comedy” inscribed with the year she studied the poet’s masterwork in school: …