What made Chang'an an important cultural and economic center?

It is located along two rivers and provides silk road.

Explanation:

Chang'an was an important cultural and economic center because it is located right by two rivers which they used for trade and have plenty of resources which make them an economic center. Chang'an was also very important because it was an ancient capital of more than ten dynasties in Chinese history and also an important crossroads for people throughout China, Central Asia, and the Middle East, and thus a hub of diverse ethnic identities and religious beliefs.

they remained in rural areas and worked at jobs such as lumbering or farming.

a yes vote means: the legislature, with a two-thirds vote, could change daylight saving time if the change is allowed by the federal government. absent any legislative change, california would maintain its current daylight saving time period