Mesoamerica movements of celestial bodies and memorialize public officials. The 260-day cycle was also used for divination, and (like the Catholic calendar of saints) to name newborns. The names given to the days, months, and years in the Mesoamerican calendar came, for the most part, from animals, flowers, heavenly bodies, and cultural concepts that held symbolic significance in Mesoamerican culture. This calendar was used throughout the history of Mesoamerican by nearly every culture. Even today, several Maya groups in Guatemala, including the [[K'iche' people|K'iche']], [[Q'eqchi' people|Q'eqchi']], [[Kaqchikel people|Kaqchikel]], and the [[Mixe]] people of Oaxaca continue using modernized forms of the Mesoamerican
The Calendar of Nature "The Months". The 1821 edition contained a preface which declared, "The good-nature with which this Calendar was received on its appearance in 1819 ... has induced its republication in a separate form, with considerable additions". The 1821 edition also included the final two stanzas of John Keats's poem "To Autumn" with the claim that "A living poet has happily personified autumn in some of the pleasantest shapes under which her servants appear". The work quotes Percy Bysshe Shelley and discusses the works of Edmund Spenser. The calendar also refers to Shelley regarding autumn when it states: "The poet still takes