How did the creation of a Parliament (what we call Congress) help the nobles, clergy, and landowners?

The creation of parliamentary institutions in European nations was a way of limiting the prevailing monarchical absolutism until then, when the kings had absolute power over their territories and their subjects, thus being able to violate without any kind of consideration the elementary rights of the life, liberty, and property of the nobles, clergy, and landowners, as well as the rest of society. Therefore, by guaranteeing the political participation of these social groups, this absolutism was put to a stop and these groups were allowed to guarantee their rights.

lincoln declared that slavery should not be allowed to spread into the new states, and of course this angered the south at the time.

b) the confederacy had to pay all union war expenses.