In all of this political arrangements a small amount of people is bringing the decision.
Explanation:
Oligarchy is a word of Greek origin and signifies minority rule.
This means that most political power is in the hands of a small portion of the population. It is also the most powerful in political and economic and military pressure.
The form of government in which one man has unlimited power is called autocracy.
Monarchy is a form of government in states where chiefs are natural persons who, as a rule, become inheritance and exercise their function for a lifetime.
Ending the First World War: the Paris Peace Conference Exactly five years after the assassination of Archduke Franz Ferdinand—the event that tipped Europe into world war—the Treaty of Versailles was signed in Paris on June 28, 1919.