The concept of a nationally-supported institute for theoretical astrophysics dates back to discussions within the Canadian Astronomical Society in the early 1980s. A series of committees advocated a model of a university‑based institute governed by a council of Canadian astrophysicists. Proposals were solicited from universities across the country to host this institute, which by now had been named the Canadian Institute for Theoretical Astrophysics/Institut Canadien d'astrophysique theorique (CITA/ICAT). The University of Toronto won the resulting spirited competition, and CITA (University of Toronto) was established as an institute within the School of Graduate Studies in June 1984, with staff consisting of a single professor (Peter G. Martin ) as the Acting Director and a visiting professor from Queen's University (Richard Henriksen) and a temporary administrative assistant. Today there are 7 faculty members two of which are Canada Research Chairs, two administrative staff, a Systems Manager and technical computing staff.