Three factors that contributed to the emergence of primary phase civilization were the subsistence modes such as agriculture, scientific and technological development.
A civilization can be understood as a complex and culturally, politically and economically organized society. The first civilizations emerged from the development of agriculture in 4000 BC around the Tigris and Euphrates rivers, with the formation of Mesopotamia, instituting a sedentary life.
The development of agriculture was the essential point for human beings to settle in cities and produce their own food. With agriculture, technologies such as irrigation and drainage also emerged, enabling the development of ancient civilizations.
Scientific development was also essential for civilizations, such as arithmetic, medicine and engineering, which made it possible to meet human needs and progress.
Therefore, the ancient civilizations contributed significantly to the formation of societies, for having a complex system in relation to social structure, religious and political system, language and subsistence technologies that made possible the development of humanity.
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