Algo

Before civilization, people lived in small tribes with a chief to guide them while they wandered aimlessly throughout the world hunting and gathering food. Peopleeventually discovered agriculture and began to settle down, creating villages. Village people had lots of new inventions and plenty of domesticated animals to helpthem work. Since they had such an abundance of food, people began to find new branches of work and others began to trade their goods. Each village most likely had aleader which controlled th land and its people. As food quantity increased, so did the population and after time, villages evolved into cities.
Cities were morecomplex than villages and tribes since they had more food and people. They had more citizens to do other specialized jobs, such as being teachers, scribes, priests,government officials, among others. Another effect of population growth was the need of complex institutions such as government. Government was needed for cities becausepeople urged a sense of control and order in their lives. Their government was the one in charge of providing any repairs to the city and they also took care ofdeveloping complicated irrigation systems for the city. Even though the government took care of the city, government officials were in the second rank in their socialclass; priests were first.
Without government, every ancient civilization would have not succeeded and the present day would live in chaos. If for some reason thegovernment ceased to exist, society would be thrown off balance because it's been so long since people haven't had a government and nobody would know what to do.