A: because blacks, even though being free, were still treated like slaves and some were even put into sharecropping to ensure they stayed poor
Some ways of getting involved are:
-voting (here for the experience, ask yourself if you have the right to vote? does your family vote? your friends?
-participating in political campaigns (do you know anyway that participated in a campaign? You can also do it unofficially, for example even by posting Facebook posts about a candidate!)
-belonging to a party - do you know anyone in a political party?
The question asks about your personal experience so I can only give you tips how to answer this about yourself!
<span />
It made the state number even so there were an even number of slave states and non-slave states. It also abolished slave trade in Washington, d.c. becasue many people were angry about there being trading there.