Ancient history. Prehistory. Classical antiquity.
Post-classical history.
Modern history. Early modern period. Late modern period. Contemporary history.
D) American citizens wanted to stay neutral until the innocent were killed.
They are examples of pictorial data
slavery was an important factor in the south because in the south it mainly crops and not Industrialized , so all the harvesting and planting was labor Intensive with slaves the southerns wouldnt have to do it plus there were not that many willing to tend the crops which make the slaves the mostly the way of making money on plantions.