Drawing on the work of Judith Butler, I analyse practices through which lif
ecycle transitions were marked on the bodies of sixteenth-century Aztec chi
ldren. Because the production of disciplined adults was socially so signifi
cant, it was also profoundly conservative. I examine implications of this e
thnohistoric study for earlier societies that formed part of a Mesoamerican
longue duree. The interpretation of archaeologically excavated material is
transformed when related to the life course. Examples discussed include ne
w perspective on Formative period (c. 1500-400 BC) costume ornaments, conve
ntions of figural representation, and feasting in domestic quarters.