Answer:
Southern, midwest states.
Explanation:
Because back then, people separated the state's but it was brought back together.
The collapse of the Silk Road gave a boost to Indian ocean trade.
Answer:
Scholars writing about historical events, people, objects, or ideas produce secondary sources because they help explain new or different positions and ideas about primary sources. These secondary sources generally scholarly books, including textbooks, articles, encyclopedias, and anthologies.
