Marting Luther King DID NOT help the protestants and catholics split, the person you are thinking about it Martin Luther, he wrote the 95 Theses explaining what he disliked about the catholic church, which caused others to question some parts of the church and eventually establish the protestant churches.
The Kansas Nebraska Act affected the border states because the Kansas Nebraska Act was set in motion a plan that was supposed to decide the Kansas question through a peaceful democratic process.
Hope this helps
Freedom of speech can be limited whenever it is D. likely to lead to imminent lawless action. This was the result of the Supreme Court case: Brandenburg vs. Ohio.
He jus extended trade and fixed the problem of ambitious building projects