I believe it is silk.
They traveled the Silk Road and gave other traders to take it to Europe.
The most important Chinese product imported to Europe in the late 1200's was silk.
Chinese traders sent silk to Europe, which was highly valued for its luxurious texture and vibrant colors. This prized fabric became a symbol of wealth and status in European societies. Additionally, the trade of silk facilitated cultural exchanges and the spread of innovations between East and West along the Silk Road. Silk's popularity significantly influenced European fashion and trade practices.
No. The vikings were a specific type of people from Northern Europe. They were the traders and sometimes raiders of the Scandinavian countries.
opium
In earlier times, the biggest Chinese export was silk.
Through traders and missoneries from India.
Polar easerlies
The Chinese people learned of Buddhism because of monks and traders.
Through traders and monsoneries from India.
Rum and tobacco
traders