Who built great zimbabwe? | World history homework help

 Watch the video.  Answer the questions. 

 https://youtu.be/quzjmZ-7s6w 

 Why did you give it this rating? (1-5star) (1 SENTESE)

 Still today, much of African history is often clouded by the perspective of non-Africans. Why is it important to explore the past from more than just written records and designate proper ownership of historical and cultural achievements  (5-7 sentenses)