The original question had to be edited. I would suggest that analysis of revolutions can reveal certain patterns in history being evident. One such element can be seen in examining the basic causes of revolutions. The specifics might be different, but revolutions start with a basic need of the Status Quo not being responsive to current perceived needs. For example, the American Revolution happens because the Colonists felt that the British were not being responsive to their plight. The Arab Revolt happens because people felt that their governments were not meeting their needs. The demand to be heard is one historical pattern that can be seen when discussing different revolutions.
Additionally, patterns can be seen in history when examining the end result of revolutions. The reality is that accomplishing and sustaining change from revolutions is much different than demanding it. For example, the French Revolution results in Napoleon taking over. The Russian Revolution results in the Bolsheviks gaining power and silencing more voices than the Czar ever could have. Historical trends can be seen when examining different revolutions. It is in this idea where analysis of revolutions can demonstrate clear patterns in history.