Introduction From an archaeological perspective, the direct observation of historical tipping points is rare. The ‘Big Bang’ that dramatically shifted the organisation and composition of Mississippian Cahokia in the Southeast USA around AD 1050 is well-documented in the sweeping changes to public plaza spaces and shifts in household material culture that followed (Pauketat & Alt Reference Pauketat and Alt2005; Beck et al. Reference Beck, Bolender, Brown and Earle2007). But we can now only speculate about the event or events—such as the ceremonial erection of a large cypress marker post in a centre plaza—that crystallised this major transformation of Mississippian history in the minds and memories of the Mississippians themselves. The arrival of Teotihuacanos to the Maya city of Tikal on 11 Eb 15 Mak (16 January AD 378) is recorded in post-factum textual documents and in the archaeological evidence of Teotihuacan presence or influence at the site at around this time (Stuart Reference Stuart, Carrasco, Jones and Sessions2000; Houston et al. Reference Houston, Ramírez, Garrison, Stuart, Ayala and Rosales2021; Moholy-Nagy Reference Moholy-Nagy2021), yet the arrival itself, occurring as a distinct event, is unknown in material terms. Such monumental events are historically contingent and emerge from the structural patterns and contexts of socially embedded ways of being (Marx Reference Marx1963; Giddens Reference Giddens1984). Yet, some moments stand out as particularly ‘eventful’; embodying simultaneously the termination of an era and the emergence of possibility (Sahlins Reference Sahlins1985, Reference Sahlins2005; Sewell Reference Sewell1996). This article presents evidence for an early-ninth-century ritual fire-burning event at the Maya site of Ucanal, the capital of the K'anwitznal kingdom (Figure 1). Occurring at the dawn of a new political era in the Maya Lowlands during the Terminal Classic period (c. AD 810–950), this event marked a moment of change in the kingdom and in the Lowlands more generally, fulfilling Sewell's (Reference Sewell1996: 844) concept of an ‘event’ in history as an occurrence that not only imparts significant structural change but is recognised as significant by contemporaries. Much epigraphic and archaeological research in the Maya area has focused on the collapse of Classic Maya polities at the end of the eighth and the beginning of the ninth century AD, examining patterns in the last dated monuments or in the ritual termination and abandonment of elite palatial and ceremonial architecture. Rather than examine this fire-burning event as a bookend to Maya history, we view it as a pivot point around which the K'anwitznal polity reinvented itself and the city of Ucanal went on to a flourishing of activities.
Conclusion The Burial 20-1 fire-burning event at the site of Ucanal marked a major juncture in the political history of the K'anwitznal polity that rejected an earlier dynastic line in the making of a new era of political history. It comprised the re-entry into the tomb (or tombs) of Late Classic Maya royalty and the ritual burning of at least two royal bodies and their bodily ornaments. The ritual burning event, which occurred sometime during the early Terminal Classic period, coincides chronologically with the reign of Papmalil of K'anwitznal who was responsible for key shifts in political alliances throughout the southern Maya Lowlands. This new era was marked by monumental building construction at Ucanal that used facing stones of previous buildings as construction fill to bury the symbols of an earlier regime. The fire-burning event itself and the reign of Papmalil helped usher in new Terminal Classic forms of monumental imagery that emphasised horizontal political ties and fundamental changes in the social structure of society. In this sense, it was not just an end of an era, but a pivot point around which the K'anwitznal polity, and the Maya of the southern Lowlands in general, transformed themselves anew.