MIT Artifical Intelligence Laboratory
The MIT Artifical Intelligence Laboratory was an early, and influential, artificial intelligence research group. Its roots lie in an informal group of AI researchers who got together in 1959; when Project MAC started in 1963, they were included as a section, focused on research in AI. It formally became an independent laboratory by splitting from Project MAC in 1970.
It eventually re-united with the remants of Project MAC (which had mostly formed themselves into the MIT Laboratory for Computer Science) in 2003, forming the MIT Computer Science and Artifical Intelligence Laboratory.