Final answer:
Before 1965, the majority of migrants to the United States came from Europe, with significant numbers from Italy, Russia, and Austria, and few from Latin America or Asia at that time.
Step-by-step explanation:
Before 1965, the majority of migrants to the United States came from Europe. During the early 20th century, more than 90% of immigrants were Europeans. As the century progressed, substantial numbers of immigrants came from Italy, Russia, and Austria, with most new arrivals practicing Roman Catholic or Eastern Orthodox Christianity and moving to urban manufacturing centers. Although there were migrants from other regions, very few came from Latin America or Asia before 1965. Over time, the pattern of immigration shifted, with increased numbers arriving from the Americas and Asia by the end of the century.