You need to answer this question because we don't do your homework and it is asking for your opinion and to show your critical thinking skills and how well you understood the the lesson.
there was no true ruler of all of Greece because a lot of the city states had different governments so they had democracies, monarchies, and oligarchies.
Rome was late in the peiece - governments of various types - monarchies, oligarchies and democracies had been developed long before Rome emerged from being a loose confederation of hill villages,
Aristotle divided Greek governments into monarchies, oligarchies, tyrannies and democracies - terms we still use today.
The two terms are not mutually exclusive. All dictatorships are governments, but there are numerous non-dictatorial governments (democracies, republics, oligarchies, etc.) However, ISIL is a theocratic dictatorship with one ruler, Abu Bakr al-Baghdadi, who has proclaimed himself as the Caliph.
There are currently no governments with official oligarchies. However, some consider the Russian Federation and the United States to be examples of financial oligarchies.
Greece began by having monarchies, then oligarchies, then tyrannies and then democracies. The Greek Government is currently a democracy, but modern democracy finds it's roots in ancient Greece.
In democracies, the assembly of the people. of the city-state In oligarchies, the council of the city-state. In tyrannies, the tyrant. In monarchies, the king.
A limited government is where the power of the government is limited. Power is kept in check by the citizens who vote for the laws, vote for representatives who create the laws, or by a constitution. Unlimited governments have unlimited power. Any time the government has all the power, it takes the power out of the hands of the people and the government is considered unlimited. Unlimited governments include, absolute monarchies, totalitarianism, oligarchies, dictatorships, fascism, theocracies, communism, and some socialistic governments. Limited governments include constitutional monarchies, parliamentary monarchies, republic monarchies, republic democracies, republics, and all democracies. Ecuador, therefore is a limited government, because it is a republic where power is concentrated in the people. Admittedly, the high degree of corruption in Ecuador makes the politicians nearly untouchable, but this is very different from if they had actual legal shielding.
European countries had many different political systems throughout history. There were oligarchies, monarchies, tyrants/dictators, democracies, etc.
As each city developed on its own patch of land, it established its own form of government. This developed from petty kings, to oligarchies, to tyrannies, to democracies, and beck to oligarchies, then kingdoms under Alexander the Great's successor-generals, then as cities and provinces part of the Roman Empire.
Typically rich aristocrats (citizens in the highest social class) headed the oligarchies of ancient Greek city-states. Additionally, military leaders were part of these types of governments. This was especially true of Sparta.
The government is the body which provides for the common good for a group of people. Historically, there have been six different types of governments, ranging from monarchies to tyrannies. These are both ruled by one person. In between the good of the monarchy and the bad of the tyranny, we find polities, democracies, oligarchies, and aristocracies. These are all examples of government by more than one person. Usually, governments function to provide incentives for the economy to sustain itself and also to provide for defense and protection. Governments also work to serve the well being of their population through programs such as healthcare and welfare.