1) What was the war called between the Northern and Southern US states?

The American Civil War

Faught in the war from 1861 to 1865.

Apr 12, 1861 – Apr 9, 1865

congress also has implied powers, which derive from the necessary and proper clause of the constitution and permit congress "to make all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states.

your mothers brothers brother in law would be your father.