Columbia

Columbia, planned community in Howard county, central Maryland, U.S. It lies southwest of Baltimore and northeast of Washington, D.C. Designed by real-estate developer James Rouse—who had in the 1950s pioneered the enclosed shopping malls that later became a ubiquitous feature of the suburban United States—Columbia was structured so as to maximize interaction between residents. The development was framed in its marketing materials as racially and economically integrated, and as such, from 1967 it attracted a...