Answer:
Congress had exceeded its authority in the Missouri Compromise
Explanation:
The Court ruled in the Dred Scott decision that Congress had exceeded its authority in the Missouri Compromise because it had no power to forbid or abolish slavery in the territories west of Missouri and north of latitude 36°30′.
In 1853 Japan ended its practice of isolationism
They were looking for wealth.
They made many political allies.
They sought a new route to Asia.
They brought Spain great wealth.
They attracted a great deal of interest in Spain.
