East Asia timeline By nicholas.harper Period: 206 to 221 the Quin dynasties Period: 206 to 213 period of the book burning policy Period: 206 to 220 bulit the great wall china 210 burial of the Terra Cotta Army speculated that many buried treasures and sacrificial objects had accompanied the emperor in his after life. Period: 221 to Apr 19, 770 eastern Zhou Dynasties Period: Jan 19, 771 to May 19, 1100 western zhou Dynasties Period: Jan 15, 1027 to Jan 15, 1766 the shang dynasties Period: Jan 15, 1766 to Jan 15, 1994 the xia Dynasty Mar 2, 2022 the first use of the crossbow Jan 19, 2450 the date of the oldestt silk found in china