Question: Lincoln the Unknown is a biography of Abraham Lincoln, written in what year, by Dale Harbison Carnegie, was an American writer and lecturer and the developer of famous courses in self-improvement, salesmanship, corporate training, public speaking, and interpersonal skills?
Sentence (from "Abe (musical)"): Abe is a musical in two acts based on the life of President Abraham Lincoln with book & lyrics by Lee Goldsmith, music by Roger Anderson and orchestration by Greg Anthony.
Relevant evidence: No