<span>The primary reason why the US had become so
incredibly divided to the point of no return by 1860 was because the US
had expanded its territory so dramatically, and it had to be determined
whether each new state was to be slave or free--practically dividing the
nation in two. </span>
The main reason why Spain decided to support Columbus' voyages of exploration was because he promised that he would bring gold and spices back from the New World. Another reason was that the Spanish Crown was interested in spreading Christianity.
<span>3. Cultural exchanges between the Middle East and Europe grew</span>
