Summarize the contributions Gallaudet, Howe, and dix made to education in America?

Has to be at least 8 sentences

the american rail road was the most influential and useful transportation system developed in the 1800's with steam locomotives and in the very late 1800's and early 1900's diesel electric locomotives being used to transport goods and people around the newly expanded united states!

lincoln declared that slavery should not be allowed to spread into the new states, and of course this angered the south at the time.