There are five main causes to the civil war, Slavery, Economy, Federal versus State rights, Abraham Lincoln becoming president and the Battle of Fort Sumter.
Answer:
I guess you mean 30 year peace treaty?
The Thirty Years' Peace was a treaty, signed between the ancient Greek city-states Athens and Sparta, in the year 446 or 445 BCE.
The purchase of the louisiana territory, which he bought from france
