Marco Polo of Italy left his footprints alongthese ancient routes in the Song Dynasty.
意大利的马可·波罗在宋代就沿着这些古道留下了足迹。
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Centuries later, in the years of Tang, Song and Yuan Dynasties, such silk routes, both over land and at sea, great adventurers, including Du Huan of China, Marco Polo of Italy, left their footprints alongthese ancient routes.