The last great prophet was Muhammad. He is considered the HUMAN founder of the religion. The Muslims believe that Allah was the founder of the religion.
BTW- I'm not Muslim, I've been studying these stuff.
Explanation: The Battle of Gettysburg was a turning point in the Civil War in that Lee's failure to take the war into the North showed the limitations of the Confederate cause and made it so that the war would be contained to and thus the damages would be felt exclusively in the South.
New England was the center of the American Industrial Revolution because of all the imports coming in and leaving the ports in New England.