What is most responsible for make Life on the Mississippi a great example of America realist writing?

Answer 1

Twain's use of idioms made the novels feel American.

Answer 2

"Life on the Mississippi" by Mark Twain is considered a great example of American realist writing due to its accurate depiction of everyday life along the Mississippi River, vivid portrayal of social conditions, dialects, and customs, and its focus on the struggles and aspirations of ordinary people. Twain's use of detailed and honest observations captures the essence of realism in literature by portraying the American experience in a truthful and unembellished manner.