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Han Dynasty: Han, the second great imperial dynasty of China (206 BCE–220 CE), after the Zhou dynasty (1046–256 BCE). It succeeded the Qin dynasty (221–207 BCE). So thoroughly did the Han dynasty establish what was thereafter considered Chinese culture that “Han” became the Chinese word denoting someone who is ethnically Chinese.
Gupta Empire: The Gupta Empire was an ancient Indian empire existing from the mid-to-late 3rd century CE to 543 CE. At its zenith, from approximately 319 to 467 CE, it covered much of the Indian subcontinent. This period is considered as the Golden Age of India by some historians.
Aztec Empire: The alliance waged wars of conquest and expanded rapidly after its formation. At its height, the alliance controlled most of central Mexico as well as some more distant territories within Mesoamerica, such as the Xoconochco province, an Aztec exclave near the present-day Guatemalan border. Aztec rule has been described by scholars as "hegemonic" or "indirect". The Aztecs left rulers of conquered cities in power so long as they agreed to pay semi-annual tribute to the Alliance, as well as supply military forces were needed for the Aztec war efforts. In return, the imperial authority offered protection and political stability and facilitated an integrated economic network of diverse lands and peoples who had significant local autonomy.
Inca Empire: The Inca Empire, also known as the Incan Empire and the Inka Empire, was the largest empire in pre-Columbian America. The administrative, political and military center of the empire was in the city of Cusco. The Inca civilization arose from the Peruvian highlands sometime in the early 13th century.
Maya Empire: The Maya civilization was a Mesoamerican civilization developed by the Maya peoples, and noted for its logosyllabic script—the most sophisticated and highly developed writing system in pre-Columbian Americas—as well as for its art, architecture, mathematics, calendar, and astronomical system.
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