During the late 19th and early 20th centuries, America experienced a significant increase in immigration. Many newcomers settled in urban areas, leading to rapid city growth. This movement was driven by various push and pull factors, and it had lasting effects on American society.

Source A: Letter from an immigrant, 1905

'I came to America seeking a better life, lured by the promise of work and freedom. The city is crowded, noisy, and full of opportunity, but life here is also hard and crowded.' Provenance: Personal letter from Maria Lopez, 1905.

The influx of immigrants contributed significantly to the expansion of American cities. Urban areas grew rapidly as new arrivals settled in neighborhoods close to factories, ports, and employment opportunities.

Source B: Census data, 1910

'The population of New York City increased by 1 million between 1900 and 1910, largely due to immigration.' Provenance: U.S. Census Bureau report.

The urbanization caused by immigration had profound social, economic, and cultural consequences. Cities became melting pots of different cultures, but also faced challenges such as inequality and social tension.

Source C: Excerpt from a social historian

'The influx of diverse immigrant groups transformed American cities, creating vibrant neighborhoods but also highlighting social divisions and economic disparities.' Provenance: Social history book, 1920.