Ancient Greek Vrotosakos ran for 200 miles in one day.
Because lack of money
They got there power by over throwing the Oligarchy
The simplest answer is that the rulers currently in power in Cambodia know that they would lose that power if they were to have elections; so they prefer to rule autocratically.
Athens
hahahah you are definetly a kid from la salle heres my essay....dont copy it Around 750 B.C., Athens slowly progressed from a monarchy, which was ruled by one man, the king. The king almost always inherited the power by family succession. They quickly jumped from a monarchy to an aristocracy, which is ruled by a small group of nobles who wrested power from the king. From there, it went to a tyranny, then finally to a democracy. A democracy is ruled by the people. Their democracy encouraged similar reforms in a number of Greek city-states. Unfortunately, around the 7th and 8th century, there was discontent in Athens, and things started to fall apart. Economically, the small farmers were unable to compete with low priced grain imports. They had to borrow money from wealthy nobles, and sold their land as security. When they were unable to pay their debt, they would lose their land, and most likely sold into slavery. Politically, the common people had no voice in the government. As the king lost power, control passed entirely into the hands of the aristocracy, or the wealthy nobles.
Eventually, the poor turned to the leaders who promised to improve there lives. They used their soldiers to throw the oligarchy's out of power.
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Try lose there power by
It isn't that they lost power, they were replaced by the governments of conquerors. When Rome annexed what we know as Greece in 146 BC, they supplanted any existing governments, with their own. They controlled Greece for so long, there would have been no one alive that could have revived those old systems when Rome finally fell.
They had an experiment in direct democracy in the 5th Century BCE. It reached it's peak in the second half of that cemtury in Athens as a direct democracy - that is the citizens gathered each fortnight and gave directions to the Council and passed laws put before them. It was not very successful as the people were easily deluded by orators leading them up false paths, and into a disastrous 27-year war with the Peloponnesian League which they lost. The people began to lose interest in it, and more autocratic forms of government returned. To day we have representative democracy, electing representatives to parliament as the ability to get the populace together is impracticable in most countries. They produced the idea, but we implement it in a quite different way, and often not all that successfully. The general feeling in ancient Greece was that a well-conducted oligarchy was a better form of government than a democracy where the people were manipulated. Not much different from today.
Yes, absolute power corrupts absolutely. If our politicians feel invincible and that they cannot be fired they will lose their focus and try to do whats best for them and not the people who elected them.