Answer:
John C. Frémont
Explanation:
He ran as the first Republican nominee for President in 1856 behind the slogan "Free soil, free silver, free men, Frémont and victory!"
The reason why vernacular literature eventually became the preferred way to produce books is because the "vernacular" was something that the majority of people could understand in terms of written language--meaning that a publisher and writer would make much more money printing in this language.