The Arsenal was demolished in 1909. The mid-19th century development of the Clay Hill area from rural to urban conditions was caused by the strong industrial growth of the city. As the city's factories rapidly grew more successful, the community at large was forced to keep up. The changes took the form of converting the farmland of long time residents to city streets for new homeowners. Multi-family dwellings were the dominant development in the late 19th century as the neighborhood became home to Irish and Jewish working-class families. The Irish had been emigrating to Hartford through a recruitment effort for work on the Enfield Falls Canal in Windsor Locks. Although he area has been primarily residential, in the post-Civil War era, the railroad attracted businesses, including a lumber yard, brewery and carriage works. Additionally, the Hartford County Jail was built in 1873 on Seyms Street. Designed by Hartford architect George Keller, it embodied the High Victorian Gothic style. The structure was demolished in 1978. In 1895, Clay Hill was predominantly Irish. At about the same time, large numbers of Jews began arriving from Eastern Europe. The African-American community grew significantly during World War I when large numbers of southern blacks began to arrive. After World War II, the area began to see a growing number of Puerto Rican and West Indian families as well. Maple Avenue, Wethersfield Avenue and Franklin Avenue are the three major roads in the South End, adjacent to the Hartford-Wethersfield town line in the southern part of the city. Franklin Avenue is known as the city's Little Italy. Although many Italians have moved just over the border to Wethersfield, Newington, and Rocky Hill, there is still a major Italian presence in that portion of the city. Eric Mangini, the former Head Coach of the New York Jets and the Cleveland Browns grew up on Franklin Avenue. There are numerous Italian bakeries and merchants along Franklin Avenue. In the past few decades, there has been migration out of the South End, with many Puerto Rican families moving into the neighborhood but nevertheless there are many local favorites (restaurants, bakeries and stores) that draw people back into the South End. The area's Italian population came out in full force when Italy won the FIFA World Cup in 2006 with thousands marching and driving down Franklin Avenue for hours with Italian flags raised high. In recent years many eastern European ethnic groups have moved into South End neighborhoods, predominantly Bosnians, Albanians and other ethnic groups from the former Republic of Yugoslavia.