Aztec enemies allied themselves with Spanish invaders.
It gave America recognition but it also counted for many lost lives.
The Southern States and the Northern States had very different economies due to the geography of the States.
The Southern States has an agrarian economy, which needed cheap labor to make profits.
The Northern States had more of a focus on industry and banking and did not have as much of a need for slave labor.
Explanation:
They had more "technology", weapons and people at those times
