Civilizations often transcend Empires and are not dependent on their survival. For example, Roman civilization was both a Republic and an Empire.
The empires of the second-wave civilizations, such as the Roman and Persian empires, were characterized by more centralized bureaucratic structures and expansive territorial control compared to the city-states of the First Civilization, like Sumer and Egypt. Second-wave empires often employed complex administrative systems to manage diverse populations and vast territories, while the First Civilizations relied more on kinship ties and local governance. Additionally, second-wave empires utilized military expansion and trade networks to enhance their power and influence, whereas First Civilizations were more localized and focused on sustaining agrarian economies.
Vast Empires
the British Empire
Egypt, the Fertile Crescent, China.
Circumstances that helped the civilizations and diverse cultures of the Americas to develop in ways both common and unique are the early civilizations of the Americas created such vast empires with an advanced form of thinking and living. These civilizations lacked some of the essential tools that the Asian civilizations depended on to form there amazing empires.
religeon ~c=3
Many empires in history feel due to invasions.
APEX: The transition from river valley civilizations to classical civilizations.
The early agriculural civilizations had just about everyone helping farm or contribute in some way to agriculture. Classical empires had enough people and land so that food could be mass produced and others could become artisans or government officials because they didnt have to work on farms.
There were many of them but the most renowned were the Aztec and Mayan civilizations.
They were both concerned with expanding their empires They had similar religions
Spanish Conquistadors destroyed both civilizations.