Why don’t we have lots of records from the Age of imperialism?

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.

Which economic sector employs the least number of people in mexico, barbados, and venezuela? a. agriculture b. services c. industry

How does the existence of a site like catus hill demonstrate the challenge that archaeologist face when making theories?