The earliest immigration of Slavs to the United States began before the American Civil War. However, the largest influx occurred within the thirty years before the outbreak of World War I. This wave of Slavic immigration was so significant that it overshadowed the Irish and German immigration of earlier decades. Initially, accurate figures of languages or nationalities were not kept, and immigrants were merely credited to the countries from which they came.
Between 1899 and 1910, the total immigration into the United States was about ten million, and of these, the Slavs formed about 20 percent or approximately two million people. By the outbreak of World War I, five and a half to six million Slavs lived in the United States. They sought better economic opportunities than those available in their home countries. Largely uneducated and primarily focused on sending money back to their families, many briefly passed through New York before finding work in steel mills, mines, and factories in Pennsylvania, New Jersey, Connecticut, and other states.
General works on Slavic and East European immigration to the United States
Slavic events and organizations in New York City
Slavic periodicals published in New York City