The neighborhoods of Milwaukee include a number of areas in southeastern Wisconsin within the state's largest city at nearly 600,000 residents. Two residents of the same neighborhood may describe different neighborhood boundaries, which could be based on ZIP codes, ethnic groupings, or simply personal opinion. Although rooted in history, neighborhoods remain social constructions, in which seemingly concrete things like boundaries are in flux, according to the observer and time period. This encyclopedic problem is true for all cities but is particularly complicated in Milwaukee when identified neighborhoods can be within other neighborhoods. For instance, Brady Street and East Village are inside the East Side, but Beerline B is essentially located in Riverwest. At the same time some Riverwest residents may regard the Beerline B as a separate distinct neighborhood or perhaps part of adjacent Brewers' Hill. On the other hand, Beerline B and Brewers' Hill residents might or might not agree that Beerline B is part of Brewers' Hill. Certainly, residents and realtors tend to assign new names as neighborhoods evolve. In other cases, some historic identities are revived by community or political groups, as for instance with Bronzeville. In 1990, the Neighborhood Identification Project set boundaries and names for 75 areas of the city. Prior to that, neighborhood names were not official and many areas had no names, official or otherwise. North Side Arlington Heights Arlington Heights is a neighborhood on Milwaukee's north side. It is bordered by Capitol Drive to the north, I-43 to the east, Keefe Avenue to the south and 20th Street to the west. It is home to Lindbergh Park, an elementary school, a middle school, and a Lutheran grade school. Union Cemetery is located at the far southwest corner of the neighborhood. Brewers' Hill Brewers' Hill is a neighborhood north of downtown on the Milwaukee River. The neighborhood is bordered by North Avenue to the north, the Milwaukee River and Holton Avenue to the east, Pleasant Street to the south, and Dr Martin Luther King Jr Drive to the west. The name Brewers' Hill (formerly "Uihlein Hill") is derived from the large number of brewery workers and owners who once inhabited the area. Just to the south of the neighborhood, the Schlitz and Blatz breweries once operated. It is a mixed neighborhood where a laborer's cottage could stand across the street from a manager's stylish house. Brewers' Hill contains an architectural mix of Greek