For most of the 20th century, LGBT Irish citizens were forced to live in a kind of exile in their own country, with the laws, the church and public opinion all working in concert to make their lives invisible or intolerable. So what happens to a history that is not written down? What happens to a history that is censured or overlooked? These questions are familiar to every Irish historian, but they possess a particular urgency for Irish LGBT historians, who know that out of sight means out of mind.