sentences:  However, hardly anything is known about the interrelations of the deities mentioned above, their role in the religious feasts, and the possible connection of these feasts to the calendar (like the monthly feasts of the Aztec and Maya).The Classic Veracruz culture was seemingly obsessed with the ballgame.Every cultural center had at least one ballcourt, while up to 18 ballcourts have been found at El Tajin.