Answer:
The most convincing 'internal' factor behind southern defeat was the very institution that prompted secession: slavery. Enslaved people fled to join the Union army, depriving the South of labor and strengthening the North by more than 100,000 soldiers. Even so, slavery was not in itself the cause of defeat.
Explanation:
Answer: Unalienable Rights
Explanation:
Between 750 and 1350, the demand for products made by Muslim artisans helped a prosperous system of international trade to develop in the Muslim world.