"...the Earth, personified by an astronomer holding an astrolabe, is situated in the center of the Universe. It is surrounded by concentric circles representing the four elements, the seven planets (the spheres and their personifications), the signs of the zodiac, the positions and phases of the moon. The diagram is framed by the personifications of the four seasons." http://www.world-mysteries.com/sar_10.htm#Books (BNF, Esp 30), The Catalan Atlas, Spain, Majorca 14th century.