The Human Genome Diversity Project tells us that between 15,000 and 30,000 years ago people from Mongolia crossed Beringia to what we now call the Americas. U.S. Immigration and Migration chronicles and interprets the phenomenal waves of immigration to the United States from the earliest times through the period from 1820 to 1930, when the United States was the destination of some 60% of the world’s immigrants – up to the present day, when restrictive policies have temporarily stanched the flow of immigrants. The Biographies volumes bring the panorama of immigration and migration to a personal level by profiling both prominent and less well-known people of the immigrant experience.