The number of first-generation immigrants to America has changed dramatically over the last 150 years.
In the 1890s, close to 15 percent of U.S. residents had been born in another country. That dropped to just over 5 percent in the 1960s before rebounding to more than 13 percent by 2015.
And immigrants come from different places today than in the past.
In 1960, 84 percent of the foreign-born population in the United States came from Europe or Canada. By 2015, only 14 percent of the foreign-born population hailed from those regions.
By contrast, in 1960 few foreign-born Americans were from Mexico (6 percent), the rest of Latin America (4 percent), or South/East Asia (4 percent).
By 2015, most foreign-born residents were born in Mexico (27 percent), the rest of Latin America (24 percent), or South/East Asia (27 percent).