Under the principle of legality, laws, which hold a person legally responsible for acts committed before the law was passed, are not binding.

ex post facto

Explanation:

Under the principle of legality, ex post facto laws, which hold a person legally responsible for acts committed before the law was passed, are not binding.  

The principle of legality states that an individual cannot be convicted for a crime that has not be publicly announced, recognized as a crime by the public or the law at the time the action was committed.  Thus, ex post facto laws which holds an individual responsible for a crime that was committed when that action had not yet been criminalized is over ruled by the principle of legality.

abolish

do away with

unanimous

in complete agreement

secede

separate; break free

inauguration

starting a new position with a formal ceremony.

cooperationist

people who wanted the north to cooperate with the south

surrender

to give up

volunteer

perform a service for free

draft

involuntary service in military

retreat

withdraw; move away from enemy

advisor

expert who gives advice

explanation:

because the early people found out about it.