Trace, Revelation, and Interpretant in Archaeological Research: The Graffiti of Huaca Colorada, Peru

Romantic notions that the advancement of archaeological knowledge depends on the thrill of unanticipated discoveries departs from the standard practice of interpreting data according to impartial research designs. However, the unexpected find commonly stymies the deductive testing of hypothesis, and the material traces (signs) upon which research relies often disrupt the course of archaeological investigations. The main objective of this article is to demonstrate that the distinct semiotic affordances of material remains can significantly affect archaeological interpretations. The undertheorized epistemological problems of revelation in archaeology are brought to bear through an examination of the spectral quality of graffiti etched onto the walls of the Moche ceremonial site of Huaca Colorada in northern Peru (CE 650–850). An interpretation of the graffiti in relationship to rituals of human sacrifice and architectural renovation demonstrates that the power of the monument was founded on its semiotic density; the complex layering of signs—that continually spawned new signs—created a place of limitless discovery and affect that profoundly shaped perceptions of the huaca for both Moche visitors and later archaeologists alike. Ultimately, the graffiti provide a rare data set that permits a consideration of the effects of signs as “intepretants” in the tradition of Peirce.