History

History is the study of change over time, and it covers all aspects of human society. Political, social, economic, scientific, technological, medical, cultural, intellectual, religious and military developments are all part of history. Usually professional historians specialize in a particular aspect of history, a specific time period, a certain approach to history or a specific geographic region.
Non-historians often say that “history repeats itself” or that “things were always this way.” History cannot repeat itself because history is not a living, thinking being. History is an intellectual discipline practiced by historians who try to make sense of the past. Because history is about change, nothing was ever “always” a certain way.