3. What was the stated aim of the Emancipation Proclamation?
A) Free all slaves in the United States.
B) Free slaves behind Confederate lines.
C) Free slaves in Union slave states.
D) Enlist slaves in the Union army.

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.