THE QUANTITY AND CHARACTER OF IMMIGRATION to the United States has varied greatly over time. During the first major influx, between 1840 and 1860, newcomers hailed primarily from northern and western Europe. From 1880 to 1915, when rates soared even more dramatically, the profile changed, with 80 percent of the “new immigration” coming from central, eastern, and southern Europe. Following World War I, strict quotas reduced the flow considerably. Note also the significant falloff during the years of the Great Depression and World War II. The sources of immigration during the last half century have changed significantly, with the majority of people coming from Latin America, the Caribbean, and Asia. The latest surge during the 1980s and 1990s brought more immigrants to the United States than in any decade except 1901–1910.