Answer:
The estates were actually social classes.
Explanation:
Until the Revolution of 1789 France was actually a feudal state. Three estates actually represented three classes that had different political, economical and even cultural influence. Although the third estate was the largest one they practically had no influence in the decision making.
First two nobles - nobles and clergy were the ones who had the main role in the society.
I believe through conquest and colonization
They followed the seasonal grazing and migration of buffalo because they survived on hunting. This was because the ground was not fertile enough for long-term crops and like today, there were tornadoes.
Islam was first introduced into india by arab traders. :D
Islam was spread extensively along the east coast of Africa.