What role did the idea of state's right play in starting the civil war?

Who gave one of the earliest accounts of the topography and tribes of the great plains?

How did emperor justinian’s review of roman laws create a more efficient legal system? a. he got rid of outdated and repetitive laws. b.he ranked the laws according to importance. c.he created new laws to address modern situations. d.he combined minor laws into stricter categories. ill mark brainliest

The county could deny african americans the right to attend white schools on the basis of