World History

Diplomatic history, sometimes referred to as "Rankian History" in honor of Leopold von Ranke, focuses on politics, politicians and other high rulers and views them as being the driving force of continuity and change in history. This type of political history is the study of the conduct of international relations between states or across state boundaries over time. This is the most common form of history and is often the classical and popular belief of what history should be.
Economic history
Although economic history has been well established since the late 19th century, in recent years academic studies have shifted more and more toward economics departments and away from traditional history departments.