How does a republic solve the problems brought on by a direct democracy?

A republic solves the problems emanating from direct democracy by establishing a regime of representativeness and proportionality in the government, that is, it goes from a direct democracy in which all citizens must agree on the issue to be decided, to a Republican government in which the rulers are representatives of the people, who elect them by suffrage and designate them as representatives, in order to govern on their behalf and for their benefit.

c]extended voting rights to african americans

they had many gains 1 one freedom for slaves the major cause of the civil war is that the   north wanted freedom for slaves but the south didn; t creaitng the civil war

another gain they have is poltiical influence

poltiical influence is a big thing everywhere even now peoplle are always trying to get the head up in poltics thats what they did by giving the republicians a good name for freeing slaves