In 1981, RichardStallman authored a paper about Emacs (TheEmacsPaper) called EMACS the extensible, customizable self-documenting display editor as MitAiLab memo number 519a. The thirteenth edition of the EmacsManual (ISBN 1-882114-06-X (alternate, search)) suggested that readers write the Publications Department of the MitAiLab to receive a copy of the memo. The memo is available online as