Before revision: The Terrestrial Sphere of Crates of Mallus ( BCE), showing the region of the antipodes in the southern half of the western hemisphere upright=1.5|Modern world map with the intertropical zone highlighted in crimson The torrid zone was the name given by ancient Greek and Roman geographers to the equatorial area of the Earth, so hot that it was impenetrable.
After revision: The Terrestrial Sphere of Crates of Mallus ( BCE), showing land masses in both the northern and southern hemispheres of the western hemisphere upright=1.5|Modern world map with the intertropical zone highlighted in crimson The torrid zone was the name given by ancient Greek and Roman geographers to the equatorial area of the Earth, so hot that it was impenetrable.