Question

The ""first wave"" of migrants to the united states between 1820 and 1890 came from.

Answer 1

Immigration from Western Europe turns from a trickle into a gush, which causes a shift in the demographics of the United States. This first major wave of immigration lasts until the Civil War. Between 1820 and 1860, the Irish —many of them Catholic—account for an estimated one-third of all immigrants to the United States.

Source: Internet