Chichen Itza was one of the greatest cities of the Maya world, and its central pyramid is engineered so that the ritual calendar is legible in stone and shadow.
The city and its history
Chichen Itza rose to dominance in the northern Yucatan between roughly the ninth and twelfth centuries CE, in the period after the collapse of the southern Maya cities. Its art and architecture mix Maya forms with elements associated with central Mexico and the Toltecs, and the nature of that connection, migration, conquest, trade or shared ideology, has been debated for a century. The city controlled a wide region and drew on the trade of the peninsula.
Kukulkan and the equinox
The dominant monument, the stepped pyramid called El Castillo, is dedicated to the feathered serpent Kukulkan, the Maya counterpart of the central Mexican Quetzalcoatl. Its design encodes the calendar: four stairways of ninety-one steps plus the top platform total 365, the days of the solar year, and other counts correspond to calendrical cycles. At the spring and autumn equinoxes the afternoon sun throws a serrated line of light and shadow down the northern balustrade so that a serpent of light appears to descend the pyramid, an effect that now draws large crowds. The site also holds a great ball court, temples and a sacred cenote, a natural well into which offerings, including human sacrifices, were cast.
A living significance
The Maya are a living people of several million, and Chichen Itza is not only an archaeological site but a place of contemporary meaning: the equinox gatherings draw Maya and non-Maya alike, some in ceremony, some as spectators. It is a World Heritage site and one of the most visited monuments in Mexico, managed by the national antiquities authority; the interpretation of its ancient religion is a matter for archaeology, distinct from the traditions of present-day Maya communities.