The Constitution of the United States divides the federal government into three branches to ensure a central government in which no individual or group gains too much control: Legislative – Makes laws (Congress) Executive – Carries out laws (President, Vice President, Cabinet)
Greece was the modern country that was a part of the Persian empire.
The peasants would be unable to provide enough for the quotas and so their goods were simply taken away from them and instead were given to the cities and the military. Millions of peasants as a result would starve to death and would end up moving to the cities where all of the food was being sent.