because the united states congress has been given the power to regulate interstate commerce, the states are limited in their ability to regulate or tax such commerce between them.
There was great tension between pro-slavery and anti-slavery representatives over how new territories won would handle the issue of slavery.
The Mexican-American War and the 1848 Treaty of Guadalupe Hidalgo, forced onto the remnant Mexican government, drew some criticism in the U.S. for their casualties, monetary cost, and heavy-handedness. Furthermore, the question of how to treat the new acquisitions also intensified the debate over slavery and in many ways inflamed it, as potential westward expansion of the institution took an increasingly central and heated theme in national debates preceding the American Civil War.
I need the chart to be able to answer this.
Islam spread to the most of the Ibearian peninsula,and as far as india in the east
