Dividing political power between a central authority and other units, like the states in the untied states, is the main concept of? a) monarchy b) democracy c) absolutism d) federalism

I think the answer is C) Absolutism

in 1862, president lincoln's emancipation proclamation opened the door for african americans to enlist in the union army. although many had wanted to join the war effort earlier, they were prohibited from enlisting by a federal law dating back to 1792.

explanation:

the viking voyages took place during the middle ages, which was about this time. 500 to 1350. the viking voyages took place during the middle ages, which was about this time.