The role of decision making in determining history

Think of it like this — if American leaders had never made the *decision* to break away from Britain, America would still be a colony of Britain.
Decision making determines the course of events. This is because a certain decision will then trigger certain actions, which in the grand scheme of things will impact history.

Example; American leaders made the *decision* to break off from Britain, triggering the Revolutionary War and America’s Independence, thus that decision changed history.

The best sociological research method would have to be using experiments although it has some disadvantages as well