Khan Academy
Khan Academy: Quiz: Welcome to the Big History
This quiz tests you on the overarching themes of Big History which links different areas of knowledge into one unified origin story.
Khan Academy
Khan Academy: Recordkeeping and History
Although many species note the passing of time, only our own species, Homo sapiens, is capable of sharing accounts, or memories, of past events and turning these into stories or "histories." This article traces the development of written...