The answer should be industrialized nations.
Thank you to USA.
It relied on a system of slave labor.
Answer: The North wanted to block the spread of slavery. They were also concerned that an extra slave state would give the South a political advantage. The South thought new states should be free to allow slavery if they wanted. as furious they did not want slavery to spread and the North to have an advantage in the US senate.
Explanation:
The Greek tyrant, Peisistratus :)
The first animated series produced for prime-time network network television was The Flintstones. The series was not the very first animated series overall, hence the Guinness World Records state it as "first for prime-time".
