“For a long time, the inner earth was a mysterious place – supposedly the reign of demons, home to ancient gods (like Pluto) and place of eternal damnation. Italian poet Dante Alighieri imagined an especially elaborate version of Hell in his Divine Comedy. He included in his description the nine circles of Hell, with Lucifer residing in the lowest, real landscapes and geological features. According to author Marco Romano, in the description of Dante’s Inferno we find earthquakes, rivers, mountains, landslides, a desert of scorching sand and even some types of rocks (like the famous marble of Carrara).
“Dante imagined Hell like an inverted cone, with its circles gradually becoming smaller nearer to Earth’s core. Each circle was dedicated to a sin and the sin’s related punishment. This image is based on calculations of Greek philosophers, like Eratosthenes of Cyrene or Claudius Ptolemy, who argued that Earth is a sphere. Hell, as part of earth, would have to be cone-shaped. Dante even gives an exact value of Earth’s radius of 3,250 miles (it’s actually 3,959 miles).” — David Bressan, Forbes, July 16, 2016
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