Civil War- Pausing Point

My job was to lead enslaved Africans to freedom on the Underground Railroad. What am I called?

I was the group of northern states that stayed with the United States. What am I?

I am secret way enslaved Africans escaped to freedom in the North. What am I called?

I took care of a baby and escaped from slavery on the Underground Railroad . Who am I?

I was elected president and didn't want slavery to spread to territories. Who am I?

I was the group of southern states that seceded from the United States. What am I?

I am the imaginary line between PA and MD. I separate slave states from the north. What am I?

I am a very large farm where large amounts of crops are grown. What am I called?

I am one of the main issues that caused the Civil War. What am I?

I am a group of stars that helped guide enslaved Africans to freedom. What am I?