The desire to improve on the current way of life is what resulted in civilization.
serotonin
over population, bad ruler, people moving to different places
Sugar or caffeine.
Control and conquer people using force and coercion. Be able to keep that control.
Irrigation in Mesopotamia
Because they are the best civilization
People make up and are members of a society. If they manage to work together and improve their lives over time, they become a civilization. The more it advances, the better it is for the people. In order to have a civilization towns, cities, etc. are essential. Cooperation among citizens, a functional government that provides rules and a written language are some other components.
Development of 1. Economy 2.science 3. humanity of people 4. winning battles
The Great Ancient Egypt's civilization ended after the conquest of Alexander the Great. The Egyptians were already on the decline as the priest class had become corrupt and the people began to turn on them.
It causes mass flooding which causes destruction of civilization and farms
It makes everyone around you feel sorry for you and have to care for you
If a roman-Greco empire would invade another civilization the defeated civilization's people would become slaves. Usuall women and children