Original: Cultures that may be considered advanced or civilized include: Cahokia, Zapotec, Toltecs, Olmec, Maya, Aztecs, Purepecha, Chimor, and the Inca.
Simplified: Cultures that may be considered advanced or civilized include: Cahokia, Zapotec, Toltecs, Olmec, Aztecs, Chimor, and the Inca.