All 13 were needed to pass those.
There are many differences and similarities between the two routes. The type of goods is just one example. The benefactors of the Silk Road, whereas the Indian Ocean route benefited the Chinese, Indian and Middle East alike.
Between 400-500 soldiers.
~Hello there! ^_^
Your question: What was the formal name of the 8th century Tang Dynasty poet Pei Yaoqing..?
Your answer: The formal name of the 8th century Tang Dynasty poet Pei Yaoqing was Marquess Wenxian of Zhaocheng.
Hope this helps~