Cermak Street and State Street prospered until 1912. Burnham Park and several accompanying institutions were built in the 1910s and 1920s. World War I and post World War I Great Migration settlers moved in and created the low-rent "Black Belt". Urban renewal and public housing projects later replaced some of the slums. In the 1940s, some of the city's slums were on the Near South Side. Century of Progress The Century of Progress International Exposition was the name of the World's Fair held on the Near South Side lakefront from 1933 to 1934 to celebrate the city's centennial. The theme of the fair was technological innovation over the century since Chicago's founding. More than 40 million people visited the fair, which symbolized for many hope for Chicago and the nation, then in the midst of the Great Depression. Modern day West of Lake Shore Drive, much of the Near South Side, in the middle of the twentieth century, consisted largely of railroad tracks and interchanges until the 1960s, when middle-class housing developments were built in the community area. In 1977, George Halas surrendered of railyards for redevelopment as Dearborn Park apartments, townhouses and accompanying tree-lined walkways. In 1988, the second phase of Dearborn Park construction began between State St. and Clark St., south of Roosevelt Rd. A housing boom emerged in the 1990s and continues to the present day with the construction of many new condominium and apartment towers. Construction of the Central Station development commenced in 1990. This was a mixed-use development on of former rail yards and air rights east of Indiana Avenue between Roosevelt Road and 18th Street. Simultaneously, loft conversion spread to the warehouses and light manufacturing structures along the major north-south Avenues of Michigan, Indiana, and Wabash, which returned them to residential properties 100 years after the flight of the elite Chicago socialites. Among the prominent buildings are One Museum Park and One Museum Park West along a redeveloped Prairie Avenue. Parks and museums Landfill use created Burnham Park and Northerly Island in the 1920s and 1930s along Lake Michigan. The Field Museum of Natural History, Soldier Field, Adler Planetarium and the John G. Shedd Aquarium were constructed on this newly reclaimed land at this time. Later, Merrill C. Meigs Field Airport was built. Northerly Island connects to the rest of the Museum Campus through a narrow isthmus along Solidarity Drive dominated by Neoclassical sculptures