Maxwell Street. The Maxwell Street Market continued from this time through the 20th century as an important economic and cultural center for the city. Italian immigrants settled along Polk Street and Taylor Street, establishing Chicago's main Little Italy. Greek immigrants centered their settlement at Harrison Street, Halsted Street, and Blue Island Avenue, calling their community "The Delta." As immigration continued, the area became unhealthily overcrowded, resulting in dilapidated tenements and pollution. These poorer residents also lacked health services from the city. This situation was to be addressed by the creation of the Hull House settlement by Jane Addams and Ellen Gates Starr in 1889. Hull House was a settlement house that provided a range of services to the residents of the West Side. A playground, a gymnasium, and language classes were provided for children, and services were provided for employment, garbage removal, and art programs. Hull House became a center of the Italian and Greek communities, however Black residents of the Near West Side weren't as welcome to use the services of Hull House and had to rely on finding or creating other community services. Early to mid-20th century As the 20th century began, Chicago had already annexed land west of Western Avenue, greatly increasing the West Side. East Garfield Park, West Garfield Park, and Humboldt Park had been sparsely populated throughout the late 19th century, but the addition of transportation infrastructure increased the population quickly. In 1892, the first elevated train line was constructed on the South Side and a year later, the Lake Street Elevated Railroad opened, providing transportation service from the city center to the West Side. In 1895, the Metropolitan West Side Elevated Railroad opened, which provided elevated train service down Harrison Street on its Garfield Park branch and also elevated train service down North Avenue on its Humboldt Park branch. Elements of these elevated train lines are used today for the CTA Green Line and Blue Line. Industry began to dominate this area further west. Sears, Roebuck and Company was founded in 1893, and in 1906 built its merchandise and catalog center in Lawndale near the intersection of Homan Avenue and Arthington Street. The North Western Railway had thousands of their employees establish a community in West Garfield Park. At this point, the West Side had immigrant industrial employees from all over Europe. There was a Polish majority in West Town; the Danish, Norwegians, and