Once conquered by the roman army you could become a citizen

Once conquered by the Roman army you could become a citizen: native, since the native citizens were those people from other cities who were conquered by the Roman army. When they belonged to Rome they became citizens but they were considered second-class because, because they were not citizens born in Rome, their citizenship had restrictions.

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:

to protest slavery i would think it would be a