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One of the earliest structures of Modified Florescent Chichén Itzá is the Castillosub, which is covered by the later Castillo. Although there is little to suggest the length of time between construction of the two buildings, the span of the Early Modified Florescent, the maximum time elapsed was probably not more than half a century. The lack of buildings assignable to this early stage may indicate it was of short duration. The awkwardness in architectural design of the Castillo-sub, which betrays hesitancy and indecision, probably was not long allowed to document the imperfections of the earliest architecture of the new era before the imposing Castillo covered it. Probably fewer than 50 years passed from the erection of the Castillosub to the construction of the Chac Mool Temple, and the mere 15 layers of plaster counted on the exterior of the Chac Mool Temple suggests that it, like the Castillo-sub, was not long in use before Temple of the Warriors replaced it. One of the problems in estimating the time span of the Modified Florescent period at Chichén Itzá is the length of time from the erection of the Temple of the Warriors to the cessation of architectural activities at the site. The sequence on the main plaza ends soon after the construction of the Temple of the Warriors and does not extend to the end of Chichén Itzá as a Modified Florescent site. The Temple of the Warriors does offer some tenuous, but suggestive, evidence of how long architectural activity might have continued in the outlying groups and on the Court of

the Columns. The 131 layers of plaster on the Temple of the Warriors, assuming the structure was refurbished almost until the end of Modified Florescent Chichén Itzá, may represent the time span from construction until the essential abandonment of Chichén Itzá. Problems with this approach include whether the structure was plastered at a constant rate through time or only when needed, whether all the coats ever applied were still extant when they were counted, and if they were counted correctly (Morris, Charlot and Morris 1931:35). If one assumes regularity, and the building was plastered each solar year, then a period of 131 years is indicated. If the exterior was plastered every 260 days, a Tzolkin or sacred year, then the time span represented is about 90 years. If the building was refreshed simply when needed, a period of less than 90 years is probably too short, and a maximum estimate of not over 150 years is reasonable. Using the maximum estimates for the length of architectural activity at Chichén Itzá during the Modified Florescent period, the longest possible span of time for the period is: Castillo-sub to Castillo

50 years

Castillo to Chac Mool Temple

50 years

Chac Mool to Warriors

50 years

Warriors to end of sequence Total

150 years 300 years

Minimum estimates are obtained by reducing the amount of time in the sequences both before and after the construction of the Temple of the Warriors: 139

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Architecture and Chronology at Chichén Itzá, Yucatán  

Architecture and Chronology at Chichén Itzá, Yucatán