openmarginalis:“Chart showing solar system as concentric circles: Primum Mobile, the planets
openmarginalis: “Chart showing solar system as concentric circles: Primum Mobile, the planets, fire, air, water, with earth at the center; in the spandrels, grotesques, a dog, a queen.” by Joannes de Sacro Bosco, Paris, France c. 1260 via The New York Public Library Digital Collections, No Known Copyright Restrictions (United States) -- source link