<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0185-6286</journal-id>
<journal-title><![CDATA[Trace (México, DF)]]></journal-title>
<abbrev-journal-title><![CDATA[Trace (Méx. DF)]]></abbrev-journal-title>
<issn>0185-6286</issn>
<publisher>
<publisher-name><![CDATA[Centro de Estudios Mexicanos y Centroamericanos]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0185-62862019000100128</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Michel Graulich y el problema del desfase estacional del año vago mexica]]></article-title>
<article-title xml:lang="en"><![CDATA[Michel Graulich and the problem of seasonal shift and the vague Mexica year]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Iwaniszewski]]></surname>
<given-names><![CDATA[Stanislaw]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Escuela Nacional de Antropología e Historia  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<numero>75</numero>
<fpage>128</fpage>
<lpage>154</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0185-62862019000100128&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0185-62862019000100128&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0185-62862019000100128&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Como se sabe, varios investigadores observaron que en el siglo xvi, el significado de los nombres de las veintenas del calendario mexica no coincide con el ciclo de las estaciones. Ya que el año vago mexica (xihuitl) de 365 días es aproximadamente un cuarto día inferior al año trópico de 365.2422 días, el año mexica (xihuitl) se estaba desplazando del año trópico a un ritmo fijo. Michel Graulich (1976, 1979) supuso que la falta de la correspondencia de los nombres de los ritos y de las veintenas con las estaciones del año se debió a la firmeza de este desplazamiento, y calculando hacia atrás concluyó que fue durante el periodo de 680 a 683 e.c. cuando los nombres de las veintenas por última vez coincidieron con las estaciones. El presente trabajo revisa sus conceptos y cálculos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Summary: As it is known, several researchers observed that in the sixteenth century, the meanings of the names of the twenty-day cycles of the Mexica calendar do not match the cycle of the seasons. As the vague Mexica year (Xihuitl) of 365 is approximately a quarter of a day shorter than the tropical year (also known as a solar year) of 365.2422 days, the Mexica year (Xihuitl) used to supplant the tropical year at a steady rhythm. Mi chel Graulich (1976, 1979) assumed that the lack of coincidence between the names of the rituals and of the twenty-day cycles with the seasons of the year was due to the firm nature of the passage of time and by calculating backwards, he concluded that the names of the twenty-day cycles coincided with the seasons was during the period from 680 to 683 A.D. This paper reviews his concepts and calculations.]]></p></abstract>
<abstract abstract-type="short" xml:lang="fr"><p><![CDATA[Résumé : De nombreux chercheurs ont observé qu&#8217;au xvie siècle, la signification des noms des vingtaines du calendrier mexica ne coïncidait pas avec le cycle des saisons. L&#8217;année vague mexica (xihuitl) de 365 jours comptant un quart de jour de moins que l&#8217;année tro pique de 365,2422 jours, elle s&#8217;est décalée vis-à-vis de cette dernière à un rythme constant. Michel Graulich (1976, 1979) a déduit que l&#8217;absence de correspondance entre les noms des rites ou des vingtaines et les saisons était dû à ce déphasage progressif et, en remon tant dans le temps, il a calculé que c&#8217;est vers 680-683 E.C. que les noms des vingtaines avaient coïncidé pour la dernière fois avec les saisons de l&#8217;année. Le présent article révise ses concepts et ses calculs.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Xihuitl]]></kwd>
<kwd lng="es"><![CDATA[año trópico]]></kwd>
<kwd lng="es"><![CDATA[año juliano]]></kwd>
<kwd lng="es"><![CDATA[ciclo sotíaco]]></kwd>
<kwd lng="es"><![CDATA[Michel Graulich]]></kwd>
<kwd lng="en"><![CDATA[Xihuitl]]></kwd>
<kwd lng="en"><![CDATA[tropical year]]></kwd>
<kwd lng="en"><![CDATA[Julian year]]></kwd>
<kwd lng="en"><![CDATA[Sothic cycle]]></kwd>
<kwd lng="en"><![CDATA[Michel Graulich]]></kwd>
<kwd lng="fr"><![CDATA[Xihuitl]]></kwd>
<kwd lng="fr"><![CDATA[année tropique]]></kwd>
<kwd lng="fr"><![CDATA[année julienne]]></kwd>
<kwd lng="fr"><![CDATA[période sothiaque]]></kwd>
<kwd lng="fr"><![CDATA[Michel Graulich]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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