Frederick Douglass the most successful abolitionist who changed America’s views of slavery through his writings and actions. Frederick Douglass had many achievements throughout his life. His Life as a slave had a great impact on his writings. His great oratory skills left the largest impact on Civil War time period literature. All in all he was the best black speaker and writer ever. Douglass was born a slave in 1817, in Maryland. He educated himself and became determined to escape the horror of slavery. He attempted to escape sl ....