Answer: Way back then, the Roman Empire was the largest empire in the world.
Explanation: Is that good?
The Neolithic Revolution began the era of permanent societies. Due to the closed nature of society, the demographic of farmers was less diverse than the demographic of herders as they mostly mated within their population. Gender roles became more prevalent. The reliance on the limited amount of land they had gave way to political organization. Less variety in terms of food which affected the overall health of the farming society's citizens.
The three areas of classical civilizations developed their own beliefs, lifestyles, political institutions, and social structures.
What years and what century?
