Olmecs
Mesoamerican ballgame

The Olmec are strong candidates for originating the Mesoamerican ballgame so prevalent among later cultures of the region and used for recreational and religious purposes. A dozen rubber balls dating to 1600 BCE or earlier have been found in El Manatí, a bog 10 km (6 mi) east of San Lorenzo Tenochtitlan. These balls predate the earliest ballcourt yet discovered at Paso de la Amada, c. 1400 BCE, although there is no certainty that they were used in the ballgame.
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