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 (15[1])activity often showed people wearing pectoral mirrors and (*) protective hachas or palmas (10[1])attached to heavy belts called “yokes.” (10[1]-5[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. (10[2])The losers were sometimes sacrificed after games of, for 10 points, what sport played widely across Pre-Columbian Mesoamerica. ■END■ (10[1])