Before the civil war, what were the two main issues the north and south came into conflict over?

The one main conflict was about slavery being allowed in the U.S. The north wanted slavery while The South wanted peace and no slavery at all. This led to a divided nation.Here is the second conflict.States authority over federal authority. The boundary line that decided if a new state entering the union would be a northern free state or a southern slave state.

Assemblies do not have written codes of laws. laws are matters for magistrates and courts, not assemblies. codes of law are things such as civil law, criminal law, and constitutional law. what assemblies have are procedures regarding debating, voting and other business they might carry out.  also note that rome had three assemblies: the assembly of the soldiers, the assembly of the tribes, and the plebeian councils.