this item was important in opening trade routes to the West 

Traders on the Silk Road made fortunes but the trip West took several: (how long)

Merchants took these four items with them to trade along the Silk Road 

Merchants brought back to China Sesame seeds, oil, metals, stones, and :

Merchants had to take one of two routes between Dunhuang and Kashgar because this was in the way

The Silk Road began in this important Training Center

This occurs when one group of people comes in contact with another group 

Buddhism spread first from India to China and later to these two places

On page 167 there's a piece of pottery in the shape of this animal 

There are about 380,000,000 followers of this religion around the globe

The Chinese considered this occupation to be the most honored and important

 what invention that helped allow horses to pull heavier loads was

 the Han Dynasty invented this in the early second century

 this item was traded to people from the west and brought China great wealth