What group of people served as the “study base” of the frontier?

How did the beliefs of the roman catholics differ from the eastern orthodox form of christianity?

According to the map, most mining occurs in the. part of the state

How did the construction of the erie canal improve transportation in the united states in the 1820s? a. the canal connected the great lakes to the mississippi river. b. the canal connected the great lakes to the ohio river. c. the canal connected the atlantic and pacific oceans. d. the canal connected the great lakes to the atlantic ocean.