In the mid-nineteenth century, a major pull factor in US interregional migration was Othe building of the Erie Canal. Othe cold climate in the East. O the Gold Rush in the West. Othe expansion of the railroads. O the overcrowding in the East.

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:

if the government does something the people dont like i tihnk threre would be a revolt