What did African Americans gain as a result of the Fourteenth Amendment?

It gave citizenship to former slaves after the civil war, as well as their posterity.

Explanation:

It says that everyone who was born in the US is given a free citizenship, which included the African Americans.

The fourteenth Amendment was initially passed to allow citizenship rights to African-Americans, and it expresses that citizenship can not be taken from anybody except if somebody surrenders it or submits prevarication during the procedure of naturalization.