What did the northwest ordinance of 1787 prohibited in the land north of the ohio river?

The ancient greek city-state of sparta was run as an oligarchy , meaning

Brainliesttt !me : ) how did the world react to liberalization measures from the soviet union?

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.