Objects in image: Book, Coin
Text visible in image: MEXICO, UNESCO, CIUDAD, PREHISPANICA, DE, CHICHEN, ITZA, PATRIMONIO, CULTURAL, DE, LA, HUMANIDAD, COMISION, NACIONAL, DE, LOS, ESTADOS, UMIDOS, MEXICANOS, PERD, LA, UNESED, DICIEMBRE, DE, 1988
Question: what year was this plague put in?
Answers: 1988, 1988, 1988, 1988, 1988, 1988, 1988, 1988, 1988, 1988