Established in 1900 as the Art Museum of Toronto, and formally incorporated in 1903. It was renamed to the Art Gallery of Toronto in 1919, before it adopted its present name, the Art Gallery of Ontario, in 1966. The museum acquired the Grange in 1911 and later undertook several expansions to the north and west of the structure. The first series of expansions occurred in 1918, 1924, and 1935, designed by Darling and Pearson. Since 1974, the gallery has undergone four major expansions and renovations. These expansions occurred in 1974 and 1977 by John C. Parkin, and 1993 by Barton Myers and KPMB Architects. From 2004 to 2008, the museum underwent another expansion by Frank Gehry. The museum complex saw further renovations in the 2010s by KPMB, and Hariri Pontarini Architects.