The Silk Road or Silk Route was an ancient network of trade routes that for centuries were central to cultural interaction through regions of the Asian continent connecting the East and West from China to the Mediterranean Sea. While the term is of modern coinage, the Silk Road derives its name from the lucrative trade in Chinese silk carried out along its length, beginning during the Han dynasty (207 BCE – 220 CE). The Han dynasty expanded Central Asian sections of the trade routes around 114 BCE, largely through missions and explorations of the Chinese imperial envoy, Zhang Qian. The Chinese took great interest in the safety of their trade products and extended the Great Wall of China to ensure the protection of the trade route. Trade on the Silk Road played a significant role in the development of the civilizations of China, the Indian subcontinent, Persia, Europe, the Horn of Africa and Arabia, opening long-distance political and economic relations between the civilizations. Though silk was certainly the major trade item exported from China, many other goods were traded, and religions, syncretic philosophies, and various technologies, as well as diseases, also spread along the Silk Routes. In addition to economic trade, the Silk Road was a route for cultural trade among the civilizations along its network. The main traders during antiquity included the Chinese, Arabs, Turks, Indians, Persians, Somalis, Greeks, Syrians, Romans, Georgians, Armenians, Bactrians, and (from the 5th to the 8th century) the Sogdians. In June 2014 UNESCO designated the Chang'an-Tianshan corridor of the Silk Road as a World Heritage Site.

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