I think T'ai-tsu is the person who made Changan his dynasty's capital
Answer:
The main reason for the destruction of Roman economy lies in the fact that during 3rd Century there were constant wars in the country with only one goal, and that was the fight for power. Between 235 and 284 there were as many as 26 claimants to the throne.
Explanation:
This period of constant wars destroyed not only economy, but also society and institutions. At the end, Diocletian who ruled after this period tried to fix some problems through reforms, but of course it was hard to repair everything that was destroyed.
Answer:
The nullification crisis was a conflict between the U.S. state of South Carolina and the federal government of the United States in 1832–33. Calhoun, who opposed the federal imposition of the tariffs of 1828 and 1832 and argued that the U.S. Constitution gave states the right to block the enforcement of a federal law.
North Korea is in the continent of Asia.