Sir Arthur Ignatius Conan Doyle, (22 May 1859 – 7 July 1930) was a British writer best known for his detective fiction featuring the character Sherlock Holmes. Originally a physician, in 1887 he published A Study in Scarlet, the first novel about Holmes and Dr. Watson. He also later became a spiritualist mystic. He died of a heart attack at the age of 71. His last words were directed toward his wife: "You are wonderful." (Wikipedia)