In the famous Dred Scott vs. Sandford case, Justice Taney wrote the majority opinion for the court. In this famous opinion, Taney wrote how African Americans are not considered citizens, rather they are considered property. This meant that they had no legal right to sue white citizens. Along with this, the ruling in this case essentially allowed slavery to take place all over the US (even for the states who already abolished it). This was one of the most important and controversial court cases of the 19th century.
He meant that there was a limit of land Spain had the ability it could control, rather than the amount it could actually be successful controlling, instead of it falling apart.
Grant gave Lee generous terms of surrender. The Confederate Army of Northern Viginia was fed (at that time they were starving because of the Confederacy's lack of supplies), allowed to keep their weapons, and sent home. Hope This Helps Answer You Question