In addition to stimulating economic growth by providing the labor that made industrial development possible, immigrants also transformed the urban landscape in the nineteenth century. They filled factories and workshops, crowded into houses and apartments, and built ethnic institutions, including synagogues and convents—visible indicators of the growing diversity of the American city.
Such marks of difference aroused growing concern among native-born Protestants. Crude stereotypes of immigrant groups appeared more frequently, and anti-Catholicism and anti-Semitism flourished in the 1830s and 1840s. Jews, who were long denied admission to skilled crafts and professions in Europe, had little choice but to pursue commercial ventures. Yet they were portrayed not as well-educated businessmen but as manipulative moneylenders. Similarly, many Irishmen enjoyed a beer with friends after laboring at difficult and low-paid jobs. But rather than being viewed as hardworking comrades, they were often pictured as habitual drunkards.
Rural Americans, seeking better jobs and new social experiences, added to urban diversity. Native-born white men often set out on their own, but most white women settled in cities under the supervision of a husband, a landlady, or an employer. African Americans, too, sought greater opportunities in urban areas. In the 1830s, more blacks joined Philadelphia’s vibrant African American community, attracted by its churches, schools, and mutual aid and literary societies. New Bedford, Massachusetts, a thriving whaling center, provided employment for black men, including growing numbers of fugitive slaves, as well as for American Indians from the region. Although relative racial tolerance prevailed in New Bedford, in most urban areas racial minorities faced hostility and discrimination that limited their opportunities.
Even as cities promised better lives for many immigrants and migrants, they also posed dangers. Battles erupted between immigrant and native-born residents, Protestant and Catholic gangs, and white and black workers. Robberies, gambling, prostitution, and other criminal activities flourished. Diseases spread quickly through densely populated neighborhoods. When innovations in transportation made it possible for more affluent residents to distance themselves from crowded inner cities, they leaped at the chance. The first horse-drawn streetcar line was built in New York City in 1832, and as lines multiplied there and elsewhere, wealthy families moved to less crowded neighborhoods away from the urban center.
Violence increased as economic competition intensified in the 1840s. Native-born white workers and employers pushed Irish immigrants to the bottom of the economic ladder, where they competed with African Americans. Yet Irish workers insisted that their whiteness gave them a higher status than skilled blacks. When black temperance reformers organized a parade in Philadelphia in August 1842, white onlookers—mostly Irish laborers—attacked the marchers. Blacks fought back, and the conflict escalated into a riot.
Americans who lived in small towns and rural areas regularly read news of urban riots, murders, robberies, and vice. Improvements in printing created vastly more and cheaper newspapers. Tabloids wooed readers by publishing sensational stories of crime, sex, and scandal. Even more respectable newspapers carried stories about urban mayhem, and religious periodicals warned their parishioners against the city’s moral temptations. After Congress funded construction of the first telegraph line in 1844 between Baltimore and Washington, D.C., news could travel even more quickly. In response to both a real increase in crime and a heightened perception of urban dangers, cities—beginning with Boston in 1845—replaced voluntary night watchmen with police forces. Fire companies, too, became established parts of city government, and city and county jails expanded with the population.