The differences in civilizations in the Americas, Africa and Eurasia were in relation to their social organization, climate, religion and culture.
The first American civilizations had a sophisticated form of social and political organization, with the practice of polytheistic religion and the practice of agriculture as the main economic activity, some examples are:
In Africa, the first civilizations settled around the Nile River Delta, as the recognized Egyptian civilization, which had a lot of knowledge in mathematics, medicine and engineering.
In Eurasia, the region where India, China, Greece and Rome are today, there was also a high degree of social development, with a focus on philosophical and religious thought for social maintenance.
Therefore, each ancient civilization developed according to the geographic, political and cultural variables to which they were subjected.
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