And here Dante describes an evidently spherical world... "The lamp of the world [the sun] rises to mortals through different passages; but through that which joins four circles with three crosses [the position of the rising sun at the vernal equinox] it issues with a better course and conjoined with better stars, and tempers and stamps the wax of the world more after its own fashion. Although such an outlet had made morning there and evening here, and all the hemisphere there was bright, and the other dark..."
Dante AlighieriYou shall find out how salt is the taste of another man's bread, and how hard is the way up and down another man's stairs.
Dante AlighieriTo get back up to the shining world from there My guide and I went into that hidden tunnel, And Following its path, we took no care To rest, but climbed: he first, then I-so far, through a round aperture I saw appear Some of the beautiful things that Heaven bears, Where we came forth, and once more saw the stars.
Dante Alighieri