table slag to the south and the water treatment plant to the north is a perfect demonstration of the vigorous advancement of the steel industry and 20th-century development. The four communities of Ainsworth; the Bush, Millgate Cheltenham/South Chicago and Calumet quickly developed into one village referred to collectively as South Chicago during the wave of annexation in 1883. The predominantly woodframed architecture of the Bush, Millgate and eastern Cheltemham are a lesson in Victoriana with the 'sunken yards' and bridge-like walk ups from street like Houston, Baltimore and Brandon attesting to the degree infrastructure built up from the original topography of that time. It also demonstrates how South Chicago was not immediately affected by the housing ordinances restricting the use of lumber for home building after The Great Fire of 1871. Most of the neighborhood north of East 83rd Street and west of South Manistee Avenue was developed after WWII and contain mostly brick homes, but under the ordinance brick homes began being built throughout the newly annexed neighborhood after 1883. South Chicago was bustling with waves of immigrants as the popularity of the World's Columbian Exposition of 1893. The steel mill became U.S. Steel South Works in 1901, continuing to attract immigrants from Ireland, Eastern Europe, Scandinavia and Italy. During the 1950s many residents called the northeast section of South Chicago *"The Bush" and worked in the local massive steel mill, US Steel. Others worked in neighboring steel mills such as Youngstown Steel, Republic Steel, Bethlehem Steel, and LaSalle Steel. At its zenith, South Chicago helped make the Chicago metropolitan area the leading producer of steel products in the nation. The Willis Tower and the Hancock Building were built from South Chicago steel. The embers, (graphite) from the smokestacks would cause the cars and sidewalks to sparkle and created a golden glow throughout the night. Softball and bowling were popular pastimes. Large Polish weddings on Saturdays were also a common sight. Throughout the early 1910s, Mexicans from a variety of regions within Mexico began to settle in communities throughout Chicago including South Chicago. South Chicago became one of the first growing Mexican communities in Chicago. The community faced many challenges including many racist attacks by the more assimilated groups. The early Mexican community began to band together and worked to help build Our Lady of Guadalupe Church as they were not welcomed in other churches throughout the area. South