玛雅：不朽的天空传说 Tales of the Maya Skies (2009)认领

　　The Maya made sense of an ever-changing world by observing, recording and predicting natural events such as solstices, solar eclipses, weather patterns, and planetary movements. These observations, in combination with a sophisticated mathematical system, allowed them to develop a precise calendar system; their measurements of the length of the solar year were more accurate than...