Boston Society of Architects
The Boston Society for Architecture (formerly known as the Boston Society of Architects) (BSA) is a nonprofit membership organization committed to architecture, design and the built environment. == History == On June 20, 1867, approximately 50 architects convened in the City of Boston to sign the articles of association for the Boston Society of Architects.
Source: Wikipedia — Boston Society of Architects (CC BY-SA 4.0)