The early generation of Italian immigrants took their first steps on U.S. soil in a place that has now become a legend—Ellis Island. In the 1880s, they numbered 300,000; in the 1890s, 600,000; in the decade after that, more than two million. By 1920, when immigration began to taper off, more than 4 million Italians had come to the United States, and represented more than 10 percent of the nation’s foreign-born population.

What brought about this dramatic surge in immigration? The causes are complex, and each hopeful individual or family no doubt had a unique story. By the late 19th century, the peninsula of Italy had finally been brought under one flag, but the land and the people were by no means unified.