The information that Zhang Qian brought back encouraged Han Wudi to destroy the Xiongnu and lay the foundations for the "<span>c. Silk roads," since it was now known that these would greatly expand the Chinese economy. </span>
Answer:
It ruled against Dred Scott and set aside the Missouri Compromise and popular sovereignty.
Explanation:
The case Dred Scott v. Sanford argued whether a slave can obtain his freedom when he step on a state that make slavery illegal.
It happened in 1857. At that time, Dred Scott's (A slave) was taken by his owner from Missouri to Illinois. (According to Missouri compromise, It is still legal to own slaves in Missouri but It is Illegal to do so in Illinois).
Scott tried to make his case to the court stating that as soon as he entered Illinois, his status as a slave should be voided and he should be considered as a citizen.
At that time, The Missouri supreme court ruled against Scott's plead. The court stated that he could never be a citizen since citizenship only apply to white people. So he's still a slave no matter where his slave owner took him.
Difficulties of moving armies, compelling local administrators to obey orders, rebellious governors, new dynasties, and periodic revolts
They use the separation goal
This means that they live separated from the mainstream communities and live in close knit small societies. Usually many of them never leave their societies and are not familiar with contemporary life styles outside of their communities.