Respuesta :

A turning point is any moment in history in which a significant change occurs.

The American Revolution is a turning point in World History and US history because of the impact of a colony overthrowing its colonial overlord.

In History, a turning point refers to a particular and significant event that unleashes a major historical development that may change the course of events.  

An example of a turning point in history is the division of Islam between Sunni and Shia Muslims, which caused a series of conflicts that remain nowadays.