China<span>1,371 million miles (2015)</span>
It would be primarily "The Church and the Crusades" that <span>played a significant role in uniting the kings and people of Europe, since adhering to religious principles back then was the norm for most. </span>
Sources such as diaries though not very reliable can be used if there are a large amount of them showing the same date and event. Historical books written about the event especially those closer to the time would be able to help determine that the date is accurate as well.
Answer: The answer is a need for a larger workforce.
Explanation: As cash crops meant increased economic growth for Louisiana, it also meant that a larger workforce was needed to produce these items.