Which major change occurred in U.S. immigration policy after 1890?

The significant shift in U.S. immigration policy after 1890 was marked by an increase in federal control over immigration. Prior to this period, states had more influence over immigration policies, but as immigration numbers surged, particularly from Southern and Eastern Europe, the federal government realized the need for a more coordinated and uniform approach to manage the growing influx of immigrants.

The Immigration Act of 1891 is a key piece of legislation that established federal oversight of immigration. This act created the Bureau of Immigration and allowed the federal government to regulate entry points, which previously had been largely managed by states. This move was driven by various factors, including concerns over public health, labor market implications, and national security.

Through increased federal control, policies were increasingly aimed at screening immigrants, setting standards for admission, and enabling deportation processes. Such changes laid the groundwork for future immigration laws and practices.