Mesoamerican Long Count calendar number (portion of the DN preceding era date) 7.2.14.19<br> Add Ring number to the ring number date to reach 13.0.0.0.0 Thompson contains a table of typical long reckonings after Satterwaite. The "Serpent Numbers" in the Dresden codex pp. 61–69 is a table of dates using a base date of 1.18.1.8.0.16 in the prior era (5,482,096 days). Mesoamerican Long Count calendar The Mesoamerican Long Count calendar is a non-repeating, vigesimal (base-20) and base-18 calendar used by several pre-Columbian Mesoamerican cultures, most notably the Maya. For this reason, it is often known as the Maya (or Mayan) Long Count calendar. Using a
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