After the american civil war, andrew jackson brokered an agreement to allow back into the union. [l.9-10.2.c]

c it says nothing about connecting those 2 seas.

in 1859, brown and 21 of his followers attacked and occupied the federal arsenal in harper's ferry. their goal was to capture supplies and use them to arm a slave rebellion. brown was captured during the raid and later hanged, but not before becoming an anti-slavery icon. abolitionist and insurrectionist

explanation: