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After the New World was discovered by Europeans, people from all over northwestern Europe sailed across the Atlantic to settle North America
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After the discovery of gold in Califorina in 1849, people from all over the world came to take part in the Gold Rush.
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About 40million immigrants from countries in southern an Eastern Europe emigrated to America in the late 1800s and early 1900s.
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Most new immigrants are from Asia and Spanish-speaking countries in Latin America