Which famous literary work was penned by Mark Twain?

The Adventures of Huckleberry Finn, authored by Mark Twain, is recognized as one of his most significant contributions to American literature. It vividly explores themes of race, identity, and moral growth through the journey of its young protagonist, Huck Finn, as he travels down the Mississippi River with Jim, an escaped enslaved person. The novel is noted for its rich portrayal of dialects and its critical stance on the social issues of the time, particularly slavery and individual conscience. Twain's distinctive narrative style and the novel's use of humor and satire further solidify its place as a cornerstone in American literature.

In contrast, the other works mentioned are written by different authors—Fahrenheit 451 is a dystopian novel by Ray Bradbury, The Good Earth is a novel by Pearl S. Buck focusing on rural China, and Siddhartha is a novel by Hermann Hesse dealing with the spiritual journey of self-discovery.