Complex sentence: Chunkey was played in huge arenas as large as 19 hectares that housed great audiences designed to bring people of region together (i.e. Cahokians, farmers, immigrants, and even visitors).
Split into simpler sentences: Chunkey was played in huge arenas as large as 19 hectares that housed great audiences. This game was designed to bring people of its time and region together (i.e. Cahokians, farmers, immigrants, and even visitors).