calendar-stone, [12], [13], [95], [245-258], [280];
system of government, origin of, [15];
game, symbolizing axial rotation, [24], [25];
calendar system, [25], [35], [53], [100], [145], [176], [179], [182], [221], [245], [282], [297], [528], [529], [530];
Great Temple of, [58], [83], [90], [96], [107], [225], [507];
City of, divided into four quarters, [83];
built on dual island in dual lake, [84];
ancient map of, [88];
ancient capital of, divided into two halves, [89];
recumbent stone figures bearing circular vessel, [93];