Answer:
The answer is below
Step-by-step explanation:
The social and political changes taking place in the Southern US after the Civil war are:
1. The formation of Emancipation Bill / Proclamation: this freed more than 3 million slaves in the Confederate states in 1863, and also ensure that blacks are enlisted in the Union Army in large numbers.
2. Civil right legislation: this ensured black people were considered citizens and are protected equally by the law, that is, guaranteed the basic civil rights of all citizens, not minding the varying colour of people.
3. Creation of sharecropping method: a form of labour system, in which African Americans only offered their labours based on their choice, that is, they can choose on what to cultivate or plant.
4. Established that all male citizens have the right to votes, not minding their race or colour.