What does engels mean when he writes "everything which here arouses horror and indignation is of recent origin, belongs to the industrial epoch"?

In 1819, what did the united states obtain from spain for $5 million?

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.

How did the opposing sides of the revolutionary war compare