Science, Tech, Math › Social Sciences The History and Archaeology of the Silk Road Share Flipboard Email Print Corbis / Getty Images Social Sciences Archaeology Basics Ancient Civilizations Excavations History of Animal and Plant Domestication Psychology Sociology Economics Environment Ergonomics Maritime By K. Kris Hirst Archaeology Expert M.A., Anthropology, University of Iowa B.Ed., Illinois State University K. Kris Hirst is an archaeologist with 30 years of field experience. Her work has appeared in scholarly publications such as Archaeology Online and Science. our editorial process Twitter Twitter K. Kris Hirst Updated August 02, 2018 The Silk Road (or Silk Route) is one of the oldest routes of international trade in the world. First called the Silk Road in the 19th century, the 4,500-kilometer (2,800 miles) route is actually a web of caravan tracks which actively funneled trade goods between Chang'an (now the present-day city of Xi'an), China in the East and Rome, Italy in the West at least between the 2nd century BC up until the 15th century AD. The Silk Road is first reported to have been used during the Han Dynasty (206 BC-220 AD) in China, but recent archaeological evidence including the domestication history of a series of animals and plants, such as barley, indicates that trade managed by the ancient steppe societies across the central Asian deserts began at least 5,000-6,000 years ago. Using a series of way stations and oases, the Silk Road spanned the 1,900 kilometers (1,200 miles) of the Gobi Desert of Mongolia and the mountainous Pamirs (the 'Roof of the World') of Tajikistan and Kyrgyzstan. Important stops on the Silk Road included Kashgar, Turfan, Samarkand, Dunhuang, and the Merv Oasis. Routes of the Silk Road The Silk Road contained three major routes leading westward from Chang'an, with perhaps hundreds of smaller ways and byways. The northern route ran westward from China to the Black Sea; the central to Persia and the Mediterranean Sea; and the southern to the regions which now include Afghanistan, Iran, and India. Its fabled travelers included Marco Polo, Genghis Khan, and Kublai Khan. The Great Wall of China was built (in part) to protect its route from bandits. Historical tradition reports that the trade routes began in the 2nd century BC as the result of the efforts of Emperor Wudi of the Han Dynasty. Wudi commissioned Chinese military commander Zhang Qian to seek a military alliance with his Persian neighbors to the west. He found his way to Rome, called Li-Jian in documents of the time. One extremely important trade item was silk, manufactured in China and treasured in Rome. The process by which silk is made, which involves silkworm caterpillars fed on mulberry leaves, was kept secret from the west until the 6th century AD when a Christian monk smuggled caterpillar eggs out of China. Trade Goods of the Silk Road While important to keeping the trade connection open, silk was only one of many items passing across the Silk Road's network. Precious ivory and gold, food items such as pomegranates, safflowers, and carrots went east out of Rome to the west; from the east came jade, furs, ceramics, and manufactured objects of bronze, iron, and lacquer. Animals such as horses, sheep, elephants, peacocks, and camels made the trip, and, perhaps most importantly, agricultural and metallurgical technologies, information, and religion were brought with the travelers. Archaeology and the Silk Road Recent studies have been conducted at key locations along the Silk Route at the Han Dynasty sites of Chang'an, Yingpan, and Loulan, where imported goods indicate that these were important cosmopolitan cities. A cemetery in Loulan, dated to the first century AD, contained burials of individuals from Siberia, India, Afghanistan, and the Mediterranean Sea. Investigations at the Xuanquan Station Site of Gansu Province in China suggest that there was a postal service along the Silk Road during the Han Dynasty. A growing mass of archaeological evidence suggests that the Silk Road may have been in use long before Zhang Qian's diplomatic journey. Silk has been found in the mummies of Egypt around 1000 BC, German graves dated to 700 BC, and 5th century Greek tombs. European, Persian and Central Asian goods have been found in the Japanese capital city of Nara. 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