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F R I D A Y

There are lots of “other Washingtons,” but the one least often considered is the one occupied by everyday people and ordinary buildings. Local pro-preservation gadfly (and George Washington University associate professor) Richard Longstreth opens “Beyond the Mall: A Symposium on the Historic Development of Washington D.C.,” a two-day examination of vernacular D.C., with his Friday night keynote address, “L.A. on the Potomac?” Tomorrow, scholars will address such topics as the evolution of Riverdale and Greenbelt, upper Connecticut Avenue and Massachusetts Avenue Heights, garden apartments, developer Harry Wardman’s front-porch row houses, and architect Mihran Mesrobian’s suburban apartment buildings and shopping centers. At 7:30 p.m. Friday and 8:30 a.m.-4:45 p.m. Saturday at the National Building Museum, 401 F St. NW. $25 for address, $15 forsymposium. (202) 543-8356. (Mark Jenkins)