Banning an entire racial or ethnic group from entering the US isn’t new, and the data shows it.

Vox’s Alvin Chang explains. For his full interactive map of the data:

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It is immigrants, and their descendants, who largely make up today’s US population. European immigrants were the first and largest group to arrive, and there were subsequent policies that made it much easier for people from those countries to come to the US. That said, a decent numbers of Canadian and Chinese immigrants also arrived early in this country’s history, and over the years, different policies allowed greater numbers of Hispanics and Asians to immigrate.

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