On the morning of March 2nd, 1887, a Rhode Island preacher awoke with no idea where or who he was. After some stumbling interactions, he gathered that he had spent the past two months running a confectioner’s shop outside of Philadelphia under the alias A. J. Brown. Psychologists diagnosed him with dissociative fugue, a form of amnesia in which a person forgets their identity and forms a new one, under which they might lead a perfectly normal life for a long period of time. The man’s real name was Ansel Bourne. He became the inspiration for the amnesiac character Jason Bourne in Robert Ludlum’s novel and later film, The Bourne Identity.