Although the Emperor was considered powerful by the Han and Qin Dynasty, the Han's governance was distinct from the Qin's. Whereas the Qin dynasity was ruthless in its governance, the Han Dynasity adopted a moderate governance that was aimed at uniting the people. In fact peasants, despite their low social class were treated better by the Han Dynasity unlike the Qin Dynasty. Also, whereas the Qin government controlled all the state resources, the Han government strived to achieve a balance between the local and central government
Abolition of slavery and promotion of equality. You won't find a result that's visible on the long term more clearly than the abolition of slavery. Ever since the end of the civil war, slavery was abolished, however, racists found other ways of attacking the African American people.