DRED SCOTT v SANFORD

In Dred Scott v Sanford (argued 1859 decided 1857 )The Supreme Court ruled that Americans of African descent whether free or slave were not America citizen and Could not sue in federal court. (http://www.pbs.org/wnet/supremecourt/antebellum/landmark_dred.html)

Dred Scott  was a slave in Missouri from 1833 of 1843. He resided on Illinois (a free state) in the area of Louisiana Territory. Where slavery was forbidden by the Missouri campaign in 1820 (http://en.m.wikipedia.org/wiki/Dred_Scott_v._Sandford)