In 2020, Jeffrey Blomster and Victor Chavez challenged the idea that this activity emerged primarily in the lowlands, with findings at the 3,400-meter high site of Etlalongo. Plastered mounds were found at a place associated with this activity at the Hohokam site of Snaketown. The oldest structure used for this activity was discovered at Paso de la Amada. Figurines depicting this activity often showed people wearing pectoral mirrors and (*) protective hachas or palmas (10[1])attached to heavy belts called “yokes.” (10[1])This activity is the basis of a modern form called ulama. This activity made use of capital I-shaped facilities, thirteen of which have been found at Chichen Itza. The losers were sometimes sacrificed (10[1])after games of, for 10 points, what sport played widely across Pre-Columbian Mesoamerica. ■END■