I believe the number is 29.
Answer:
The Civil War confirmed the single political entity of the United States, led to freedom for more than four million enslaved Americans, established a more powerful and centralized federal government, and laid the foundation for America's emergence as a world power in the 20th century.
Explanation:
They needed to have enough supply for food is what I would say because if you don't eat you will eventually get weak and die.
Hope It Helped :D
What is polo? is it like a known sport or no