The main reason was the South wanted to preserve slavery. The North wanted to abolish it. If you want some other reasons than slavery, let me know, and I will do my best to add more to this answer.
Horace Mann was advocating the education reform movement.
Answer:
they followed him everywhere he went
Answer:
That new regular army developed the techniques of battle and siege that were used to achieve most of the 14th-century Ottoman conquests, but, because it was commanded by members of the Turkish notable class, it became the major vehicle for their rise to predominance over the sultans, whose direct military supporters ...
