Which event was the catalyst for the secession of the first seven southern states in 1861?
APassage of a higher protective tariff.
BIssuance of the emancipation proclamation.
CThe election of Abraham Lincoln as President.
DThe shipment of the union supplies to fort Sumter.
APassage of a higher protective tariff.
BIssuance of the emancipation proclamation.
CThe election of Abraham Lincoln as President.
DThe shipment of the union supplies to fort Sumter.