They began as hunter-gatherers who found a location and settled down.
They learned how to domesticate animals and how to cultivate plants for food.
They formed communities, which in turn formed alliances with one another.
The largest or most influential community became the head of the others, either by force or choice.
A nation-state was formed.
Territory was enlarged over time, and an empire was born.
There was a period of great prosperity and, with it, an influx of new ideas and inventions along with beautiful art and architecture.
A period of strife followed, and the empire weakened.
The standards and beliefs that began the civilization were forgotten or deemed no longer important, and the empire began to decay from within.
Another empire came along that was in stage 6 above, and it conquered the decaying empire.
Explanation:
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