National Geographic : 1922 Feb
128 THE NATIONAL GEOGRAPHIC MAGAZINE Courtesy of the Peabody Museum of Harvard University FOUR MAYA MONUMENTS OF DIFFERENT AGES, SHOWING THE DEVELOPMENT OF STONE-CARVING DURING THE OLD MAYA EMPIRE The first monument (Stela 3, at Tical) dates from 229 A. D.; the second (Stela 25, at Naranjo) is 125 years later, dating from 354 A. D.; the third (Stela B, at Copan) is 118 years later than the second, dating from 472 A. D .; the fourth (Stela Io, at Seibal) is 118 years later than the third and dates from 590 A. D .