Between 1880 and 1915, thirteen million Italians left their homeland, launching the largest emigration from any country in recorded world history. As the young Italian state struggled to adapt to the exodus, it pioneered the establishment of a "global nation"--an Italy abroad cemented by ties of culture, religion, ethnicity, and economics.

In this wide-ranging work, Mark Choate examines the relationship between the Italian emigrants, their new communities, and their home country. The state maintained that emigrants were linked to Italy and to one another through a shared culture....