Significance of antebellum era

the technological advances and religious and social movements of the antebellum period had a profound effect on the course of american history including westward expansion to the pacific

these conditions long with a short growing season made farming difficult.

explanation:

the north has a climate of warm summers and snowy cold winters. the terrain is rocky, hilly, and not good for farming.

i would say it is the roman empire europe after the norman conquest.