1. If your talking about people answering your questions yes.
2. if there is a problem...no one can see it.
Hope this helps. It is the best I could come up with:
Missouri compromise (allowed slavery in Missouri)
K/N Act (made Kansas a territory free do decide on slavery)
Dred Scott (made black people property)
Fugitive slave act (forced north to cooperate with slave owners)
Bleeding Kansas (Missouri pro-slavery men invaded and terrorized Kansas to force slavery)
The person who wrote the famous philosophy the republic is Plato. Hope this helps!
The north part of China decreased the most