The xiongnu empire rose in power and trade even after the chinese attempted to block its influences

By building the Great Wall

Explanation:

The Xiongnu were nomadic pastoral people who formed a great tribe and dominated Central Asia for more than 500 years. China were against them and believed that they were a threat, because of that they built the Chinese Wall. The Empire stretched from Korea to the East, Lake Balkash to the West, Lake Baikal to the North and Tibet to the South. They lasted from 214 BC to 350 AD.

yes based on alexanders actions he deserved the title of "the great". his empire covered about 3,000 miles and he was able to establish the empire over a 13 year period of time. he was able to conquer many different places. he also defeated the persians. he conquered egypt and developed a city and named it after himself.