Remembering the three stages of Storytelling.

Jim Shuter (a famous comic book writer) once told me that every good story ever had three components:

1) What was? status quo

2) What happened to change it? Catalyst 

3) What was the result ? Well...the outcome. 

Since History is nothing more than the story of humanity I can assume that it (history) would share these 3 components. 

We've studied 2 of the three four regarding African history in the West. 

The result would be our present day situation, the status quo would be our study of ancient Africa. 

Since there is such a difference between the two situations.  Differences that would be considered almost reciprocal scenarios one has to ask...What happened to change the Status quo?

My answer to them is...Slavery and Colonialism.