The history of the United States as covered in American schools and universities typically begins with either Christopher Columbus's 1492 voyage to the Americas or with the prehistory of the Native peoples; the latter approach has become increasingly common in recent decades. Below are some useful links that discuss various aspects of American History.
Ancient history is the aggregate of past events from the beginning of recorded human history to the Early Middle Ages or the Postclassical Era. The span of recorded history is roughly 5,000 years, with Sumerian Cuneiform script, the oldest discovered form of coherent writing, from the protoliterate period around the 30th century BC.
Political history is the narrative and analysis of political events, ideas, movements, leaders and entities. It is very interrelated to other fields of history such as Diplomatic history, social history, economic history, and military history, as well as constitutional history and public history. Below are some useful links that discuss various aspects of Political History.
Military history is generally contained within the scope of general historical recording of armed conflict and its impact on the societies, their cultures, economies and changing intra and international relationships. This also generally covers impact on the societies , the aftermath of conflicts as well as details of battles and equipment used.