Answer:
The Achaemenid Empire, which is in Persia
The slavery started when colonists needed help doing their farms and they started to get all kinds of slaves until they realized that African slaves were the best.
The correct answer is The Wealth of Nations.
This novel was written by Adam Smith, a famous economist and philosopher. In it, he described what a nation's wealth is, and how to achieve it, which makes it instrumental for the Free Enterprise system as we know it today. Before this book, it was much different.
Hoover's relations with latin America differ from those of his predecessors because he supported much more friendly relations with Latin America, making it easier the 'good neighbor' policy of his successor, unlike his predecessors who seem to had bad relationship with their neighbor<span />