A law that banned Chinese people from immigrating to the United States for 10 years was called

Chinese Exclusion Act

Explanation:

The resulting Angell Treaty permitted the United States to restrict, but not completely prohibit, Chinese immigration. In 1882, Congress passed the Chinese Exclusion Act, which, per the terms of the Angell Treaty, suspended the immigration of Chinese laborers (skilled or unskilled) for a period of 10 years.

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