Editing Aztec calendar (section)

==Tōnalpōhualli==
The {{lang|nci|[[tōnalpōhualli]]}} ("day count") consists of a cycle of 260 days, each day signified by a combination of a number from 1 to 13, and one of the twenty day signs. With each new day, both the number and day sign would be incremented: 1. Crocodile is followed by 2. Wind, 3. House, 4. Lizard, and so forth up to 13. Reed. After Reed, the cycle of numbers would restart (though the twenty day signs had not yet been exhausted), resulting in 1. Jaguar, 2. Eagle, and so on, as the days immediately following 13. Reed. This cycle of number and day signs would continue similarly until the 20th week, which would start on 1. Rabbit, and end on 13. Flower. It would take a full 260 days (13×20) for the two cycles (of twenty day signs, and thirteen numbers) to realign and repeat the sequence back to 1. Crocodile.

===Day signs===
The set of day signs used in central Mexico is identical to that used by [[Mixtec]]s, and to a lesser degree similar to those of other [[Mesoamerican calendars]]. Each of the day signs bear an association with one of the four cardinal directions.<ref>{{Cite book |title=Ciclos de tiempo y significado en los libros mexicanos del destino |trans-title=Cycles of time and meaning in the Mexican books of destiny |last=Hill Boone |first=Elizabeth |publisher=Fondo de Cultura Económica |year=2016 |isbn=9786071635020 |location=[[Mexico City]] }}</ref><ref>{{Cite book |title=Manual de arqueología americana |trans-title=Manual of American Archeology |last=Beuchat |first=Henri |publisher=Daniel Jorro |year=1918 |location=[[Madrid]] |pages=349–352}}</ref>

There is some variation in the way the day signs were drawn or carved. Those here were taken from the {{lang|la|[[Codex Magliabechiano]]}}.

{| width="100%"
|
{| class="wikitable" style="text-align: center;"
! Image ||[[Nahuatl]] name || [[WP:IPA for Nahuatl|Pronunciation]] || English translation || Direction
|-
| [[File:Cipactli.jpg|x50px]] || {{lang|nci|[[Cipactli]]|italic=no}} || {{IPA|nah|siˈpáktɬi|}} || Crocodile<br/>Alligator<br/>Caiman<br/>Crocodilian Monster<br/>Dragon || East
|-
| [[File:Ehecatl2.jpg|x50px]] || {{lang|nci|[[Ehecatl|Ehēcatl]]|italic=no}} || {{IPA|nah|eʔˈéːkatɬ|}} || Wind || North
|-
| [[File:Calli.jpg|x50px]] || {{wikt-lang|nci|calli|Calli|italic=no}} || {{IPA|nah|ˈkálːi|}} || House || West
|-
| [[File:Cuetzpalin.jpg|x50px]] || {{wikt-lang|nci|cuetzpalin|Cuetzpalin|italic=no}} || {{IPA|nah|kʷetsˈpálin̥|}} || Lizard || South
|-
| [[File:Coatl.jpg|x50px]] || {{wikt-lang|nci|cōātl|Cōātl|italic=no}} || {{IPA|nah|ˈkóːwaːtɬ|}} || Serpent<br/>Snake || East
|-
| [[File:Miquiztli.jpg|x50px]] || {{wikt-lang|nci|miquiztli|Miquiztli|italic=no}} || {{IPA|nah|miˈkístɬi|}} || Death || North
|-
| [[File:Mazatl.jpg|x50px]] || {{wikt-lang|nci|mazātl|Mazātl|italic=no}} || {{IPA|nah|ˈmásaːtɬ|}} || Deer<br/>Animal || West
|-
| [[File:Tochtli.jpg|x50px]] || {{wikt-lang|nci|tōchtli|Tōchtli|italic=no}} || {{IPA|nah|ˈtóːtʃtɬi|}} || Rabbit || South
|-
| [[File:Atl3.jpg|x50px]] || {{wikt-lang|nci|atl|Ātl|italic=no}} || {{IPA|nah|ˈaːtɬ|}} || Water || East
|-
| [[File:Itzcuintli.jpg|x50px]] || {{wikt-lang|nci|itzcuīntli|Itzcuīntli|italic=no}} || {{IPA|nah|itsˈkʷíːn̥tɬi|}} || Dog || North
|}
|style="vertical-align: top"|
{| class="wikitable" style="text-align: center"
! Image ||[[Nahuatl]] name || [[Help:IPA|Pronunciation]] || English translation || Direction
|-
| [[File:Ozomatli.jpg|x50px]] || {{wikt-lang|nci|ozomahtli|Ozomahtli|italic=no}} || {{IPA|nah|osoˈmáʔtɬi|}} || [[Monkey]] || West
|-
| [[File:Malinalli.jpg|x50px]] || {{wikt-lang|nci|malīnalli|Malīnalli|italic=no}} || {{IPA|nah|maliːˈnálːi|}} || Grass || South
|-
| [[File:Acatl.jpg|x50px]] || {{wikt-lang|nci|acatl|Ācatl|italic=no}} || {{IPA|nah|ˈáːkatɬ|}} || Reed || East
|-
| [[File:Ocelotl.jpg|x50px]] || {{wikt-lang|nci|ocēlōtl|Ocēlōtl|italic=no}} || {{IPA|nah|oːˈséːloːtɬ|}} || [[Ocelot]]<br/>Jaguar || North
|-
| [[File:Cuauhtli.jpg|x50px]] || {{wikt-lang|nci|cuāuhtli|Cuāuhtli|italic=no}} || {{IPA|nah|ˈkʷáːʍtɬi|}} || Eagle || West
|-
| [[File:Cozcacuauhtli.jpg|x50px]] || {{wikt-lang|nci|cōzcacuāuhtli|Cōzcacuāuhtli|italic=no}} || {{IPA|nah|koːskaˈkʷáːʍtɬi|}} || Vulture || South
|-
| [[File:Olin (Aztec glyph from the Codex Magliabechiano).jpg|x50px]] || {{lang|nci|[[Ōlīn]]|italic=no}} || {{IPA|nah|ˈoːliːn̥|}} || Movement<br/>Quake<br/>Earthquake || East
|-
| [[File:Tecpatl.jpg|x50px]] || {{wikt-lang|nci|tecpatl|Tecpatl|italic=no}} || {{IPA|nah|ˈtékpatɬ|}} || Flint<br/>Flint Knife || North
|-
| [[File:Quiahuitl.jpg|x50px]] || {{wikt-lang|nci|quiyahuitl|Quiyahuitl|italic=no}} || {{IPA|nah|kiˈjáwitɬ|}} || Rain || West
|-
| [[File:Xochitl.jpg|x50px]] || {{wikt-lang|nci|xōchitl|Xōchitl|italic=no}} || {{IPA|nah|ˈʃoːtʃitɬ|}} || Flower || South
|}
|}
Wind and Rain are represented by images of their associated gods, {{lang|nci|[[Ehēcatl]]|italic=no}} and {{lang|nci|[[Tlāloc]]|italic=no}} respectively.

Other marks on the stone showed the current world, and the worlds before this one. Each world was called a sun, and each sun had its own species of inhabitants. The Aztecs believed that they were in the Fifth Sun, and like all of the suns before them, they would also eventually perish due to their own imperfections. Every 52 years was marked out due to the belief that 52 years was a life cycle and at the end of any given life cycle, the gods could take all they had, and destroy the world.

==={{lang|es|Trecenas}}===
The 260 days of the sacred calendar were grouped into twenty periods of 13 days each. Scholars usually refer to these thirteen-day "weeks" as {{lang|es|[[trecena]]s}}, using a [[Spanish language|Spanish]] term derived from {{wikt-lang|es|trece}} "thirteen" (just as the Spanish term {{wikt-lang|es|docena}} "dozen" is derived from {{wikt-lang|es|doce}} "twelve"). The original [[Classical Nahuatl|Nahuatl]] term was "in cencalli tonalli" (a family of days), according to Book IV of the ''Florentine Codex''.

Each {{lang|es|trecena}} is named according to the calendar date of the first day of the 13 days in that {{lang|es|trecena}}. In addition, each of the twenty {{lang|es|trecenas}} in the 260-day cycle had its own tutelary deity:

{| class="wikitable"
! {{lang|es|Trecena}} || Deity || {{lang|es|Trecena}} || Deity
|-
| 1 Crocodile || {{lang|nci|[[Tonacatecuhtli]]|italic=no}} || 1 Monkey || {{lang|nci|[[Patecatl]]|italic=no}}
|-
| 1 Jaguar || {{lang|nci|[[Quetzalcoatl]]|italic=no}} || 1 Lizard || {{lang|nci|[[Itztlacoliuhqui]]|italic=no}}
|-
| 1 Deer || {{lang|nci|[[Tepēyōllōtl]]|italic=no}} || 1 Quake || {{lang|nci|[[Tlazōlteōtl]]|italic=no}}
|-
| 1 Flower || {{lang|nci|[[Huēhuecoyōtl]]|italic=no}} || 1 Dog || {{lang|nci|[[Xipe Totec|Xīpe Totēc]]|italic=no}}
|-
| 1 Reed || {{lang|nci|[[Chalchiuhtlicue]]|italic=no}} || 1 House || {{lang|nci|[[Ītzpāpālōtl]]|italic=no}}
|-
| 1 Death || {{lang|nci|[[Tōnatiuh]]|italic=no}} || 1 Vulture || {{lang|nci|[[Xolotl]]|italic=no}}
|-
| 1 Rain || {{lang|nci|[[Tlāloc]]|italic=no}} || 1 Water || {{lang|nci|[[Chalchiuhtotolin]]|italic=no}}
|-
| 1 Grass || {{lang|nci|[[Mayahuel]]|italic=no}} || 1 Wind || {{lang|nci|[[Chantico]]|italic=no}}
|-
| 1 Snake || {{lang|nci|[[Xiuhtecuhtli]]|italic=no}} || 1 Eagle || {{lang|nci|[[Xōchiquetzal]]|italic=no}}
|-
| 1 Flint || {{lang|nci|[[Mictlāntēcutli]]|italic=no}} || 1 Rabbit || {{lang|nci|[[Xiuhtecuhtli]]|italic=no}}
|}