|The development of Commonwealth Avenue was not a continuous process. As land was created, lots were sold and homes were built, although a recession in 1873 slowed sales for years.Overcrowding downtown was forcing professionals and business owners into the suburbs. In hopes of retaining a wealthy population in the city, Back Bay was developed to appeal to affluent sensibilities. Removed from the commercial district, with its beautiful residences, tree-lined boulevards, and cultural institutions, prosperous Bostonians were proud to call the area home. This photograph taken after 1878 documents the area as development was proceeding.