The Age of Mass Migration (1850-1913) was among the largest migration episodes in history. During this period, the United States maintained open borders. Using a novel dataset of Norway-to-US migrants, we estimate the return to migration while accounting for migrant selection across households...

Using two million census records, we document cultural assimilation during the Age of Mass Migration, a formative period in US history. Immigrants chose less foreign names for children as they spent more time in the US, eventually closing half of the gap with natives. Many immigrants also...

We provide the first estimates of ethnic segregation between 1850 and 1940 that cover the entire United States and are consistent across time and space. To do so, we adapt the Logan-Parman method to immigrants by measuring segregation based on the nativity of the next-door neighbor. In addition...