When Sir Arthur Conan Doyle published “A Study in Scarlet” in 1887, he could have never anticipated the cultural phenomenon that his main character, Sherlock Holmes, would one day become. The book has spawned multiple TV shows and movies, including “Sherlock” (2010) and “Elementary”...

For the past century, skeptics and theorists have been questioning the reality of certain events, attempting to persuade people to believe in things that oppose the normalities of society. Coined as conspiracy theories, these superstitions have infiltrated our everyday lives and gained popularity in...