Zimbabwe!!?

Question

When was the civilization of zimbabwe most powerful and why?

Answer 1

There is not a lot known about "Great Zimbabwe". seems to have been around 11th to 15th century CE

http://www.metmuseum.org/toah/hd/zimb/hd...

http://www.archaeology.org/9807/abstract...

http://www.geocities.com/CollegePark/Cla...

http://www.ccds.charlotte.nc.us/History/...

http://www.thenagain.info/WebChron/Afric...

http://en.wikipedia.org/wiki/Great_Zimba...

part of the problem for the uncertainty about the culture is the lack of a written language.