ABSTRACT
Understanding immigration and diversity has long been a major concern in the social sciences in the United States. This is not surprising. As a classic settler society, immigration has played a central role in the United States since its inception. Moreover, important social science works on immigration were written in the wake of the last great wave of immigration in the early twentieth century. Indeed in 1910, the US population was nearly 15 per cent foreign born, a height it still has not reached again, though at 13 per cent in 2010 it is coming close.
