The han dynasty is one of the most significant dynasties in thehistory of China and it attained lots of remarkable achievements during thereign. The han dynasty is the first in opening its door to other cultures, withthe foreign trade prosperous. The Silk Road exploited in han dynasty lead tothe central and west part of Asia, even Rome. The schools of art also present astate of flourish, springing up lots of monumental works in literature, historyand philosophy. The first dictionary in China was compiled and finished in 100A.D., which not only contains nine thousand Chinese characters, but also offersparaphrases and examples of different writing skills. Science and technologyalso made much progress during this period. People invented water clock,sundials and the instruments that can predict the earthquake. The han dynastywitnessed four hundred years and went to doom because of governors’ decadent.