Wonders of the East and Astronomical-Calendrical Treatise

This sign is placed in the first position because
in March, which is the beginning of the year In the medieval and classical world, the new year was often calculated from the spring equinox in March, when the Sun entered Aries, they say
the sun passes through that part of the sky. Aries original: "Aries"; the Ram,
moreover, consists of nineteen stars in total, as it is arranged here. The accompanying illustration depicts the ram with nineteen small circles, matching this count; medieval astronomers often relied on these fixed counts from traditional catalogs