Where did most immigrants to the United States come from in the mid-1800s?Check all of the countries that apply.

In the mid-1800s, large numbers of immigrants to the United States came from Ireland and Germany, driven in part by famine and economic hardship. Italy and Russia became major sources of U.S. immigration later, especially in the late 1800s and early 1900s. The correct choices are Ireland and Germany.

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