A 2nd Schematic Map of the Silk Road during the Roman Age. In 30 BC the Roman Empire started trading with India, which was already well known from the Conquest of Alexander the Great (+/- 330 BC). In the following 6 centuries the West would Trade with India and indirectly also with China through the Silk Road. The Silk Road only lost its Value after the European Age of Discovery and the Establishment of Maritime Trade Routes with India (16Th Century) and later China.