The Bermuda Triangle refers to a roughly triangular region of the western Atlantic Ocean bounded by Miami, Bermuda, and Puerto Rico, popularly associated with the unexplained disappearance of ships and aircraft. The term was coined by writer Vincent Gaddis in a 1964 Argosy magazine article, "The Deadly Bermuda Triangle," which framed the region as a "triangle of tragedy" with losses occurring "beyond the laws of chance." Charles Berlitz's 1974 bestseller The Bermuda Triangle β which sold roughly 20 million copies β cemented the legend in mainstream popular culture, in part by connecting it to unrelated maritime incidents, including the Mary Celeste mystery, which actually occurred on the opposite side of the Atlantic entirely.