I think they are still used and relevant today because people know that they are very significant. people take that they were written long ago into consideration and that makes it more valuable
Answer:
forbid slavery north of the 36*30 line inside the louisiana purchase
I am pretty sure that it is C, I am not 100% sure.
A nation's "sovereignty" allows it to exercise its political power and authority, since without sovereignty it is unlikely that the nation would be able to keep out outside powers and influence.
