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"Han Dynasty — Cultural Heights." Ushistory.org. Independence Hall Association, n.d. Web. 06 Nov. 2016.
<http://www.ushistory.org/civ/9c.asp>.
"Han Dynasty Economy." Han Dynasty Economy. ThehanDYnasty.com, 2014. Web. 06 Nov. 2016. <http://thehandynasty.com/han-dynasty-economy.html>.
Mark, Joshua J. “Silk Road.” Ancient History Encyclopedia, Ancient History Encyclopedia, 28 Mar. 2014,
www.ancient.eu/silk_road/.
"Shang Dynasty — China's First Recorded History." Ushistory.org. Independence Hall Association, n.d. Web. 06 Nov. 2016.
<http://www.ushistory.org/civ/9b.asp>.
Violatti, Christian. "Han Dynasty." Ancient History Encyclopedia. Ancient History Encyclopedia, 27 May 2013. Web. 06 Nov. 2016. <http://www.ancient.eu/Han_Dynasty/>.