Which amendment said that citizens may not be prevented from voting because of race or previous status as a slave? a. the 15th amendment b. the 14th amendment c. the 16th amendment d. the 13th amendment

A. the 15th amendment gave all US citizens the right to vote regardless of race, gender, etc.

Ghana, first of the great medieval trading empires of western africa (fl. 7th–13th century). it was situated between the sahara and the headwaters of the sénégal and niger rivers, in an area that now comprises southeastern mauritania and part of mali.