One thing that makes piecing together the history of sub-saharan africa easier for researchers for oral histories. oral history is

Oral history is the transmission of historical knowledge orally over time. This means that the traditions, past, and historical events of groups of peoples are not written down in text or books but instead are transmitted through oral histories over time. Oral histories are common in cultures and societies all around the world including Sub-Saharan Africa. 

In my honest opinion , i’d say franklin d roosevelt was a president that impacted our nation , i say this because fdr is voted among top three best us presidents and he was the longest serving president by 3 terms , usually presidents only supposed to have two terms increments of 4 years , equivalent to 8 years total before election time. and he established the fdic , through the 1933 banking act and he established the us , social security system , during his presidency, and established a national minimum wage , through the fair labor standards act , fdr led the allied coalition to victory in wwii and he played a major role in the creation of the united nations.

A)30b)29c)28d)31hope this .