I believe the answer is slavery
<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 worlds is not flat it is round but on minecraft it is flat
Samuel de Champlain is primarily known for his diplomatic efforts as well as his exploration adventures, since he was the explorer who officially settled "New France" in the New World.
A. Transcontinental railroad